Mavis Smart Glasses Manual

Important Safety Information

Please read this section carefully before using your Mavis Smart Glasses and Smart Case.

Water and Moisture

Intended Use and User Limitations

Battery Replacement

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Unboxing Your Mavis Device

Thank you for choosing Mavis Technologies. Your device has been carefully packaged using fully recyclable, high‑quality materials.

What’s in the Box

Depending on the version you have purchased, your box may contain the following items:

• Viaro Smart Glasses or Itero Smart Glasses (depending on your model)
• Viaro Smart Case or Itero Smart Case (matching your glasses model)
• Registration key
• This user manual
• USB‑C charging cable (included with some versions)
• External USB charger (included with some versions — allows the glasses to charge independently without the case)

Additional accessories are available to purchase separately on the Mavis Technologies website.

Opening the Package

Your Mavis device arrives in two boxes. The outer box is a plain cardboard shipping box. Inside, you will find the product box — lift the lid straight up to open it.

The product box is divided into sections. The top section contains this manual and any USB cables included with your version. The lower section contains the Smart Case with the glasses safely stored inside.

Before First Use

Remove the Smart Case from the box and connect it to a charger using the USB‑C cable. Allow the case to fully charge before use. Hardware details for the glasses and case are described in the following section.

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Hardware Overview

Viaro Case vs Itero Case

Mavis offers two Smart Case models. The Itero Case is the larger of the two and is designed to be used with Itero Smart Glasses. It contains two batteries, giving it approximately twice the charging capacity of the Viaro Case. The Viaro Case is smaller and more compact, designed for the Viaro glasses.

Always use the case that matches your glasses model. The hardware description below covers the Viaro Case first, followed by the Itero Case. Controls and ports function the same way across both models.

Viaro Case – Exterior

The Viaro Case is a matte black clamshell case that fits comfortably in one hand. It has a soft‑touch matte finish on all surfaces. The case opens from the top — lift the lid upward from the front to open it. It is held shut by an internal magnet, so you will feel a gentle snap when it closes.

On the front face of the case you will find, from top to bottom:

• LED status indicators — A small row of tiny holes near the top of the front face. Behind these sit LED lights that show the status of the case, such as charging or connectivity. A carer or sighted person can read these indicators — see Case LED Indicators.
• Two buttons — Below the LED holes are two small tactile buttons, positioned side by side on the front face. Their functions are described in Case Buttons.
• USB‑C charging port — At the bottom of the front face is the USB‑C port used to charge the case. The oval‑shaped recess is easy to locate by touch. The USB‑C connector can be inserted either way up.

On the back of the case is the LTE 4G antenna. For the best mobile signal, always keep the case with the back face facing upward or outward when the glasses are in use.

Viaro Case – Inside

Inside the case is a shaped cradle that holds the glasses securely. You will feel a raised connector area — this contains the magnetic charging contacts that align with the pogo pins on the right temple of the glasses to begin charging automatically when the glasses are placed in correctly. Please always fold the glasses arms right first, then left. This will allow the glasses charging points to be properly aligned in the case.

Viaro Smart Glasses – Hardware Overview

The Viaro Smart Glasses look and feel similar to a regular pair of glasses. They come with lenses fitted and are worn in the same way as conventional eyewear. All electronics are built into the frame and temples, keeping the design discreet. The frame and all components are fully RoHS compliant (Restriction of Hazardous Substances). The glasses carry an IPX weather resistance rating, meaning they can be worn outdoors in rain, but must not be submerged or used in the shower or swimming pool.

On the top surface of the right temple you will find two buttons, located side by side:

• Button F (Front) — The button closest to the front of the glasses, near the lens. This is the primary interaction button.
• Button B (Back) — The button closer to the ear. This is the quick action button.

On the underside of the right temple you will find the charging pogo pins — a small cluster of metal contact points. These connect to the charging contacts inside the case when the glasses are stored correctly. Alternatively, a separate USB charger accessory (not included in the package, available on the Mavis website) can connect directly to these pogo pins to charge the glasses while they are being worn.

Itero Case – Exterior

The Itero Case is the larger of the two case models. It is a matte black clamshell case with the same soft‑touch finish as the Viaro Case, but noticeably wider and heavier due to its dual internal batteries. Despite this, it still sits comfortably in one hand. Like the Viaro Case, it opens from the top by lifting the lid upward at the front and closes with a magnetic snap.

On the front face of the Itero Case you will find, from top to bottom:

• Mavis M logo — A small raised embossed M symbol in the upper centre of the face, identifiable by touch.
• Grip ridges — Three shallow horizontal ridges running across the lower half of the front face, providing grip and helping you identify the front surface by touch.
• LED status indicators — A row of small holes near the top of the front face, behind which sit LED indicator lights. A carer or sighted person can read these to check status — see Case LED Indicators.
• Two buttons — Two small tactile buttons below the LED holes. Their functions are described in Case Buttons.
• USB‑C charging port — At the bottom of the front face. The oval USB‑C recess is easy to locate by touch and accepts the connector either way up.

As with the Viaro Case, the LTE 4G antenna is located on the back of the case. Keep the back face facing upward or outward when in use for the best mobile signal.

Itero Case – Inside

Inside the Itero Case you will find a shaped cradle sized for the Itero glasses. At the narrow end of the cradle you will feel the raised magnetic charging pins that align automatically with the pogo contacts on the right temple of the glasses when placed in correctly. The lid interior is smooth and flat. The case is held shut by a magnet and opens with a gentle lift from the front edge — no button or latch required.

Itero Smart Glasses – Hardware Overview

The Itero Smart Glasses are slightly larger than the Viaro model and have a more formal appearance, making them well suited to professional and formal settings. They carry a larger battery — approximately twice the capacity of the Viaro glasses — located in the right temple. Like the Viaro glasses, all components are fully RoHS (Restriction of Hazardous Substances) compliant and carry an IPX weather resistance rating: suitable for outdoor use in rain, but not for use in the shower or submerged in water.

On the top surface of the right temple you will find two buttons:

• Button F (Front) — The button closest to the front of the glasses. Primary interaction button.
• Button B (Back) — The button closer to the ear. Quick action button.

On the underside of the right temple you will find two ports, both located toward the front of the arm where it meets the frame:

• Charging pogo pins — Small raised metal contacts on the underside of the right temple. These connect to the charging pins in the case, or to an optional separate USB charger accessory (not included, available on the Mavis website) for charging while wearing the glasses.
• 3.5 mm headphone jack — Located close to where the right arm meets the front frame. This circular port accepts a standard 3.5 mm headphone plug, allowing you to connect wired headphones or an earpiece for private or clearer audio output. This port is unique to the Itero glasses and is not present on the Viaro model.

Sensors in This Product

Mavis Smart Glasses and the Smart Case contain the following sensors. Each is listed with what it is used for, so you always know what the product can sense.

• Camera (glasses) — captures images in front of you for scene description, reading text, barcode scanning and face recognition. It captures only when you ask for one of these features; it does not record continuously.
• Microphones (glasses) — capture your voice commands and your side of calls.
• Two time‑of‑flight distance sensors (glasses) — measure the distance to objects in front of you for obstacle detection. They sense distance only; they do not record images.
• Ambient light sensor (glasses) — measures how bright the surroundings are, so the camera and night vision can adjust.
• Accelerometer (glasses) — senses movement and orientation of the glasses.
• GNSS satellite positioning receiver (Smart Case) — determines your location for navigation and location features. It receives only; it does not transmit your position by itself.

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Registration Steps

Mavis devices can be supplied in two ways:

• Unregistered (includes two keys in the box) — One key for the glasses and one for the case. You will need both to complete registration. Follow the steps below.
• Pre‑registered (no keys in the box) — The device has already been registered to your email. Your username and password will have been sent to you directly. Log in at office.mavistech.uk using those credentials and skip to step 1.

Step 1 — Open the Portal

Open your internet browser and go to office.mavistech.uk. You will see the login page.

Step 2 — Create an Account and Enter Your Keys

Select Register on the login page. You will be taken immediately to the device setup screen. Enter your two keys:

• Device Key — enter the glasses key here.
• Case Key — enter the case key here.

Once both keys are entered, press Submit.

Step 3 — Enter Your Personal Details

You will be taken to the registration form. Fill in all fields:

• First name and last name
• Email address
• Password
• Address
• Contact number

Once all fields are completed, press Register.

Step 4 — Verify Your Email

You will be asked to verify your email address. A six‑digit code will be sent to your inbox. Enter this code when prompted.

Once verified, your glasses and case will be registered and linked together. Your device is now ready to use.

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Introduction

About Mavis Smart Glasses

Mavis Smart Glasses and case are an assistive wearable device developed by Mavis Technologies to support individuals who are blind or visually impaired. The system is designed to provide real‑time information about the surrounding environment, improve personal safety, and enable easy communication without the need to use hands or look at a screen.

Glasses work by combining sensors, cameras, microphones, and speakers inside the glasses with intelligent software running both on the device and in the cloud. This allows the glasses to understand what is happening around the user and communicate that information through clear spoken feedback.

The system is designed to be intuitive, reliable, and accessible, even for users with little or no technical experience.

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What Mavis Smart Glasses Can Do

Mavis Smart Glasses provide assistance in seven main areas:

• Environmental awareness — describing surroundings and detecting obstacles
• Reading and information access — reading printed text aloud
• Obstacle detection — detecting obstacles in your path
• Product and barcode scanning — identifying packaged products and reading out ingredients, allergy advice, and other product information
• People recognition — identifying familiar faces
• Communication — making and receiving calls and messages
• Remote management — allowing carers or family to assist through the web portal

Each of these features is explained in detail in the sections below.

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System Components

Smart Glasses

The smart glasses are worn like regular eyewear and contain all essential sensors and controls. They include a forward‑facing camera used for scene analysis, face recognition, and text reading. Distance sensors continuously monitor the space in front of the user to detect obstacles.

Microphones capture voice commands, while speakers provide clear spoken feedback. A vibration motor or buzzer provides haptic alerts, which are especially useful in noisy environments.

All interactions are designed to be hands‑free, using simple button presses and voice commands.

Smart Case (LTE 4G + GPS)

The smart case serves several important functions. It charges the glasses when not in use and contains its own battery. The case also provides LTE 4G mobile internet connectivity, allowing the glasses to remain connected even when no Wi‑Fi network is available.

The built‑in GPS module enables location tracking and navigation features. When the case is nearby, the glasses automatically use it to maintain an internet connection and location awareness.

On‑Device Software

The on‑device software runs directly on the glasses. This software is responsible for time‑critical functions such as obstacle detection, button handling, audio playback, and basic voice interaction.

Because these functions run locally, key safety features like obstacle detection continue to work even when there is no internet connection.

Cloud Services

Cloud services provide advanced intelligence that requires more computing power. These services handle scene understanding, detailed text recognition, barcode and product database lookups, face recognition, navigation processing, and natural language understanding for the Voice Assistant.

Communication between the glasses and the cloud is encrypted to protect user privacy.

Mavis Management Portal

The Mavis Management Portal is a secure web interface that allows users, carers, or family members to manage the glasses remotely. Through the portal, it is possible to configure settings, add contacts, register faces, manage Wi‑Fi networks, and initiate calls.

The portal is accessible from any modern web browser.

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Buttons and Physical Controls

This section covers the two buttons on the glasses and the two buttons on the Smart Case. The glasses have two buttons located on the top of the right temple, positioned side by side. Each performs different functions depending on how it is pressed. On the right temple underside are the charging pogo pins, and on Itero glasses, the 3.5 mm headphone jack is also on the underside of the right arm, close to where the arm meets the frame.

Throughout this manual, the two glasses buttons are referred to as follows:

• Button F (Front) — the button closest to the lens, toward the front of the glasses.
• Button B (Back) — the button closer to the ear, toward the rear of the temple.

Button F – Voice Assistant Button

Button F is the primary interaction button:

Button B – Quick Action Button

Button B provides quick access to commonly used features:

Obstacle detection and scene description can run at the same time. To do this, activate obstacle detection first (hold Button B for 5 seconds), then press Button B once to start scene description. Both features will run together. A single press will stop scene description; holding for 5 seconds will stop obstacle detection.

Case Buttons

The Smart Case has two small tactile buttons on the front face, directly below the row of LED holes. They are the same on the Viaro Case and the Itero Case, and are referred to in this manual as Case Button 1 and Case Button 2.

You do not need the case buttons for everyday use. The case switches itself on when you take the glasses out, and goes to sleep on its own when the glasses are back inside or have been away from the case’s Wi‑Fi for a long period. The buttons are there for checking status, for putting the case to sleep by hand, and for restarting it if it stops responding.

Double pressing Case Button 1, holding Case Button 2, and holding both buttons together have no effect. They will light up the LEDs, as any press does, but perform no other action.

Case LED Indicators

Behind the row of holes on the front of the case sit eight small lights in a line, numbered from left to right. They are read visually, so they are mainly useful to a carer, family member or sighted assistant. Anything you need to know as the wearer is also signalled by the case buzzer or spoken through the glasses.

The lights are off most of the time to save power. Press either case button to bring them on.

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Voice Assistant

The Voice Assistant gives you direct access to an AI that can control and configure the glasses, provide information, describe your surroundings, and search the internet — all through natural conversation. Press Button F once to activate it. The glasses will emit a beep to indicate they are listening. If feedback logging is enabled in the portal, the voice session will be saved.

The system uses voice detection to know when you have finished speaking. In noisy environments it may not detect the end of your speech automatically — if this happens, press Button F to signal you have finished and are waiting for a response. To cancel and stop the Voice Assistant at any time, press Button B.

You no longer have to wait for the glasses to finish speaking. While Mavis is talking — a scene description, text being read aloud, or a Voice Assistant reply — press Button F to stop the current audio straight away and carry on. There is no need to wait for a long response to finish: cut it short and immediately ask your next question or give your next answer. Conversations and readings feel faster and more natural.

Configuring Settings

To adjust a setting, activate the Voice Assistant and use the word “Set” followed by what you want to change. For example:

• “Set obstacle detection distance to maximum”
• “Set volume to maximum”
• “Set gesture”

To enable or disable a feature, begin your command with “Enable” or “Disable”. For example:

• “Enable face recognition”
• “Disable logs”

Scene Description and Follow‑up Questions

Activate the Voice Assistant and say “Describe the scene.” The glasses will confirm they are capturing an image, take the photo, and then describe what they see. When the description is finished, the glasses will emit another beep to indicate they are listening again.

You can then ask follow‑up questions about the same image without taking a new photo. Start your question with “From the same scene”. For example:

• “From the same scene, how far are the objects from me?”
• “From the same scene, how many people are in front of me?”
• “From the same scene, what are people wearing?”
• “From the same scene, can you give me a text summary?”

If you want to capture a fresh image, simply say “Describe the scene” again and the glasses will take a new photo.

Searching the Internet

The AI can search the internet for live information. Begin your request with “Check on the internet”. For example:

• “Check on the internet, how do I look after a Dragon plant?”
• “Check on the internet, what is the weather in Northampton?”
• “Check on the internet, what is the time in London?”

Activating Features by Voice

You can activate any feature directly by name. For example:

• “Activate obstacle detection”
• “Read the text”

Ending a Session

To end the Voice Assistant session, say “End the session.” The glasses will stop the feature. You can also press Button B at any time to cancel immediately.

Quick Reference

• Activate: Single press of Button F, then beep, then speak
• Stop speaking (noisy environment): Press Button F
• End session by voice: Say “End the session”
• Cancel immediately: Press Button B

Scene Description

What Scene Description Does

Scene description provides an audio summary of what the camera sees in front of the user. This can include people, objects, indoor or outdoor environments, and general context.

The feature is designed to help users understand unfamiliar surroundings and orient themselves more confidently.

How to Use Scene Description

Scene description can be activated in two ways:

• By saying “Describe the scene” to the Voice Assistant
• By pressing Button B once for continuous descriptions

Continuous mode is useful when walking or exploring an area.

While a description is being read aloud, press Button F to skip it and carry on straight away — for example, to ask for another description or a follow‑up question.

Obstacle Detection

Obstacle detection is designed to help you move safely and confidently. It warns you when something is in your path — such as a wall, a person, a chair, a pole, or any other object that could cause a collision. It works both indoors (at home or in buildings) and outdoors (on streets and pavements). Obstacle detection works offline and does not require an internet connection, so it functions reliably at all times regardless of connectivity.

How It Works

The glasses contain patented distance sensors that continuously scan the space in front of you, measuring how far objects are in real time. When an obstacle is detected within your selected range, the glasses alert you immediately using sound or vibration. The alerts are dynamic: slow and gentle when an object is far away, faster and more frequent as you get closer, and near‑continuous when an object is very close, signalling immediate danger. This graduated feedback helps you judge how close an obstacle is without needing to see it.

The system is designed to detect obstacles at approximately chest level and above — such as walls, doors, people, and large items. Objects very low to the ground, such as small items on the floor or steps close to your feet, may not always be detected. Continue using your usual mobility techniques alongside this feature.

Activating and Controlling

• Voice: Say “Activate obstacle detection” to start. The system begins scanning immediately and continues automatically without further input.
• Button B: Press and hold Button B for 5 seconds to activate. The same action deactivates it. Obstacle detection can run alongside scene description — once active, a single press of Button B toggles scene description on or off while obstacle detection continues.

Detection Range

To change range, say “Change obstacle detection range to 1 metre” (or 2 or 3). Maximum is 3 metres.

• 1 metre — Tight indoor spaces or crowded environments needing precise, immediate feedback.
• 2 metres — Normal everyday walking in typical surroundings.
• 3 metres — Outdoor use where earlier warnings give more time to react.

Tips for Best Performance

Keep your head facing forward while walking and maintain a steady pace. The sensors work best when scanning directly ahead. The system may not detect objects very high above head height or extremely small objects at long range. Obstacle detection is an assistive tool to improve safety — use it alongside your usual mobility techniques and aids.

Reading Text (OCR – Optical Character Recognition)

What OCR Can Read

• Printed documents
• Signs
• Labels
• Menus
• Letters and notices (including most handwriting, as tested in the lab)

How OCR Works

When OCR mode is activated, the camera captures an image of the text. The system recognises the text and converts it into spoken audio.

The user can ask follow‑up questions such as asking for a summary or specific information from the text.

While the text is being read aloud, press Button F to skip the current audio and continue straight away — for example, to ask a follow‑up question without waiting for the reading to finish.

Barcode Scanner (Product Information)

What Barcode Scanner Does

Barcode Scanner lets you identify packaged products — such as food, drink, and household items — by scanning the barcode printed on the packaging. Once the barcode is recognised, the glasses check it against product databases and read out useful information about the item, including the product name, ingredients, allergy advice, and other available details such as nutritional information and dietary suitability (for example, whether a product is vegan, vegetarian, or gluten‑free).

How Barcode Scanner Works

When Barcode Scanner is activated, the camera captures an image of the barcode. The glasses read the barcode and send it to the cloud, where it is checked against product databases. The matching product information is then read aloud through the glasses’ speakers.

How to Use Barcode Scanner

To scan a product:

1. Pick up the package and hold it steady roughly 15–20 cm in front of you, with the barcode facing the glasses.
2. Press Button F to activate the Voice Assistant. After the listening beep, say “Read the barcode” or “Scan barcode.”
3. The glasses will confirm they are capturing an image, then take the photo.
4. If the barcode is not found straight away, the glasses will ask you to reposition the package slightly and try again.
5. Once the barcode is recognised, the glasses will read out the product name, followed by ingredients, allergy advice, and any other information available.

You can also activate this feature directly by name — for example, “Scan this product” or “What is this?” — while holding the item in front of the camera. As with Scene Description, you can then ask follow‑up questions about the same product without scanning again, such as “Does this contain nuts?” or “Is this vegan?”

Information Provided

Face Recognition

Purpose of Face Recognition

Face recognition helps users identify familiar people. When enabled, the glasses can announce the name of a recognised person when they appear in view.

This feature supports social interaction and reduces uncertainty in conversations.

Registering Faces

Faces can be registered through the Mavis Management Portal, or directly by voice. To register by voice, activate the Voice Assistant and say “Add new face” (or “Register a face”). The glasses will ask you to look at the person’s face and capture a few photos automatically, retaking a photo on the spot if it comes out too blurry or too dark. Once enough good photos are captured, you will be asked for the person’s name — say something like “Their name is”, followed by the name, to save it. Each face is stored securely and linked to the user’s account.

Using Face Recognition

Once enabled, the feature runs automatically: recognised people are announced by name at the start of a detailed scene description, without needing to ask separately. You can also ask directly at any time, “Who is in front of me?”

Continuous Face Recognition

For ongoing, hands‑free recognition, say “Start recognizing faces”. The glasses will then periodically check for anyone registered coming into view and announce their name automatically as soon as they are recognised, without you needing to ask each time. Say “Stop recognizing faces” to turn this off again.

Calls and Communication

Audio and Video Calls

Viaro supports audio and video calls between:

• Two Viaro devices
• The portal and a Viaro device
• Shared external contacts

Calls are initiated using voice commands or through the portal.

Shared Contact Links

Each device can generate a shared call link. This link can be sent to family members or carers, allowing them to call the user without installing special software.

Links can be reset or disabled at any time from the portal.

Email

Email Account Activation in Portal

Before emails can be used, it must be linked to the portal. In settings, there is a tab called “Email”, which gives the option to connect your email to the portal. Gmail, Outlook, and most other email providers are supported — providers besides Gmail and Outlook are connected using an app password. Only one email account can be connected at a time; to switch providers, disconnect the current one first.

If you connect a Gmail account, Google may show a security warning during sign‑in while our app verification with Google is still underway. This is expected and nothing to worry about — you can continue past the warning to finish connecting your account.

Send, Receive, and Read Emails

The email tool works in the following way. Firstly, activate voice assistance and say, “Read latest email”. This will start reading unread emails. To compose a new email, please activate voice assistance and say, “Send new email”. After this, the glasses will guide you through the following steps.

To reply to an email, simply activate voice assistance and say, “Reply to [Someone’s] email received [date/time]” and Mavis glasses will try to find the email and reply to it. All following steps will be guided by Mavis Glasses.

To send feedback or get help directly, say “Send new email to Mavis support”. This skips straight to asking for your subject and message, without needing to know our email address.

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Mavis Management Portal

The Mavis Management Portal is available at office.mavistech.uk and gives you full control over your glasses and settings. Through the portal you can manage your device, configure settings, add contacts, register faces, manage Wi‑Fi networks, start calls, connect your email account, save custom locations, and contact support. Most settings can also be controlled directly through the glasses using voice commands.

Dashboard

The dashboard provides an overview of the device, including battery level, last connection time, volume, and detection range.

Device Management

The “My Devices” section allows users to view and manage all registered glasses. New devices can be added using a registration key.

Contacts and Calls

Contacts can be added, edited, or removed. Calls can be initiated directly from the portal, and shared call links are managed here.

Face Recognition Management

All registered faces can be viewed, edited, or deleted from the portal.

Audio Settings

The portal allows you to adjust the audio playback speed of the glasses. You can increase or decrease the speed to suit your listening preference. This setting takes effect once the glasses sync with the portal.

Night Vision

Night vision mode can be enabled or disabled through the portal. When enabled, the camera adapts for better performance in low‑light environments, improving the accuracy of scene description and other visual features in dark conditions.

Email Integration

You can connect your email account to the portal to enable sending and receiving emails directly through the glasses. Gmail, Microsoft Outlook, and most other email providers are supported. Once connected, incoming emails can be read aloud by the glasses and you can compose and send replies using voice commands. The portal also supports sending messages, helping you stay connected more easily.

Messages: Chatting with Support and Staff

The portal includes a Messages feature so you can chat with the Mavis Technologies support team directly, without needing to send an email or make a phone call.

A “Messages” icon appears at the top of every portal page, and “Messages” is also listed in the left‑hand navigation menu. When you have unread replies, a screen reader will announce the icon as “Messages, [number] unread”; when there is nothing new, it announces “Messages, no unread messages.” Selecting it opens the Messages page.

On the Messages page, a “Message Support” button starts a new conversation with support, or reopens one already in progress. Once a conversation is open, its name (for example, “Mavis Support”) appears as a heading, followed by the message history. New messages are announced automatically as they arrive, so there is no need to search the page for them. Below the message history is a “Type a message” text box and a “Send” button.

At present, customers can only start a conversation with support this way — you cannot yet start a direct conversation with another customer. Group conversations that include customers are set up by staff.

Custom Points of Interest

The portal includes a map where you can add and save custom points of interest. These could be important places such as your home, GP surgery, local shop, or any other frequently visited location. Once saved, these locations are accessible through the navigation feature on the glasses, making it quicker to get directions to places you visit regularly.

Wi‑Fi Management

Wi‑Fi networks can be added and managed through the portal, giving you full control over connectivity without needing to use provisioning mode on the glasses. See the “Adding Wi‑Fi Networks via the Portal” section below for full details on adding Wi‑Fi through the portal and the important sync requirement.

Personal Settings: Custom Scene Description Prompts

Under Personal Settings in the portal, you can choose how scene descriptions are worded. Four options are available: Default, which uses the glasses’ normal built‑in description style; Indoor; Outdoor; and Custom.

Choosing Indoor, Outdoor, or Custom replaces the usual description style with your own wording for that option — for example, if you would prefer descriptions to focus on room layout indoors, or on streets and traffic outdoors.

Only one option is active at a time, selected using a set of radio buttons. If you choose Indoor, Outdoor, or Custom, you will need to write some text for it before saving, since it cannot be left blank. Switching back to Default at any time restores the normal built‑in description style.

Once you have written the text for an option in the portal, you can also switch between them by voice, without opening the portal again. Activate the Voice Assistant and say “Activate indoor prompt”, “Activate outdoor prompt”, “Activate custom prompt”, or “Activate default prompt”.

Deleting Your Data

You can remove your personal data from Mavis at any time.

• To delete individual items — registered faces can be deleted under Face Recognition Management, saved Wi‑Fi networks under Wi‑Fi Management, and saved places under Custom Points of Interest.
• To delete everything held by Mavis — delete your account from the Mavis Management Portal. This removes your personal data from the Mavis cloud, including your registered faces, contacts, saved places and location history. The portal confirms on screen when the deletion is complete.
• To clear the glasses and the case themselves — email support@mavistech.uk and we will carry out a device reset for you. This clears everything held on the device, including saved Wi‑Fi credentials. Please do this before passing a device to someone else.
• If you would rather we did all of it for you — email support@mavistech.uk and we will action it and confirm when it is done.

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Navigation

The navigation feature helps guide you to your destination using spoken instructions. It uses GPS provided through the Smart Case to track your location and give directions in real time. The feature is fully hands‑free — once started, you do not need to interact with the system while walking.

Starting Navigation

Press Button F to activate the Voice Assistant. After the listening beep, say your destination clearly and naturally. You can provide:

• A specific address: “Navigate me to 12 Baker Street”
• A place name: “Take me to Tesco”
• A type of location: “Navigate me to the nearest supermarket” or “Find the nearest bus stop”

If you would like more detailed route guidance, add “with summary” to your command. For example: “Navigate me to Baker Street with summary.” Without this, you will receive standard turn‑by‑turn instructions.

Choosing a Location

After you speak your destination, the system searches for matching locations and presents up to three options, each with the distance from your current position. For example, you may hear: “Option one, distance 300 metres. Option two, distance 600 metres. Option three, distance 1 kilometre.”

The Voice Assistant will then ask you to choose. Say the number of your preferred option — for example, “Option one” or simply “One.” Navigation will begin automatically based on your selection.

During Navigation

As you travel, the glasses provide continuous spoken instructions including turn directions and remaining distance updates. Guidance adapts in real time as you move, keeping you on the correct route. You do not need to interact with the system — everything works automatically once navigation has started.

When you arrive at your destination, the system will notify you and stop automatically.

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Bus and Train Times

You can ask for live bus and train times without opening any app. Activate the Voice Assistant and say “Bus times” or “Next bus” for buses, or “Train times” or “Next train” for trains.

If the Smart Case can already tell where you are, the glasses will suggest the nearest bus or train station and ask you to confirm — for example, “You’re near Turnpike Lane bus station, would you like the timetable from there?” Just say yes, or give a different postcode or bus station number instead.

If no location is available, you will be asked for your postcode — for example, “N N 1, 2 B S”, spoken slowly and letter by letter is clearest. For buses, you can also give the bus station reference number printed on the sign at that stop; the reading feature can read that number aloud for you if needed. Either way, the glasses will read out the next few buses or trains due, with route numbers or destinations and how many minutes away they are.

For trains, instead of giving a postcode you can also name a station directly — for example, “Trains from Paddington” — and you can include your destination in the same request, such as “Trains from Paddington to Brighton”, to hear only the services heading there.

After a bus timetable is read out, you can immediately ask a follow‑up about one specific route without repeating your postcode — for example, “Bus fifteen full timetable”, to hear more upcoming times for just that route from the same stop. For trains, once a station’s departures are read out, you can immediately ask “Trains to Brighton”, or name any other destination, to filter that same station’s board to trains heading there.

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Wi‑Fi and Connectivity

Wi‑Fi Provisioning

The glasses support Wi‑Fi connectivity and can store up to 30 saved networks. Normally, when taken out of the case, the glasses automatically connect to the Smart Case without any user interaction. However, there may be times when you want to use the glasses without the case — for example at home or in the office. In this situation, you can connect the glasses directly to a Wi‑Fi network using provisioning mode.

When the glasses are turned on, they automatically scan for known Wi‑Fi networks. If no known network is found, or if you want to add a new one, follow these steps:

1. Activate provisioning mode — Press Button F. The glasses will switch into provisioning mode and begin broadcasting their own temporary Wi‑Fi network, acting as an access point.
2. Connect your phone or computer to the glasses — On your mobile phone, laptop, or computer, open Wi‑Fi settings and look for a network named Mavis_Glasses followed by a unique serial number. Select it and enter the password 123456789.
3. Open the setup portal — After connecting, a setup portal will open automatically on your device. If it does not open, launch your web browser and navigate to the setup page manually.
4. Complete the setup form — The portal will show the following fields: select your Wi‑Fi network from the dropdown list; enter its password; optionally give the connection a name such as “Home Wi‑Fi” or “Office Wi‑Fi” to identify it later; and set a priority number (1 is highest, 8 is lowest) to control which network the glasses prefer when multiple known networks are in range.
5. Save and connect — Once you save the settings, the glasses will exit provisioning mode and connect to your chosen network automatically. The network is stored in device memory, so the glasses will reconnect to it in future without requiring setup again.

Wi‑Fi Priority

The glasses can store up to 30 saved Wi‑Fi networks. Priority determines which network the glasses prefer when more than one known network is in range. A lower priority number means a higher preference — priority 1 will always be chosen over priority 2, and so on.

For example, the Smart Case connection is typically set to priority 2. If you add your home Wi‑Fi at priority 1, the glasses will automatically prefer the home network when you are at home, giving you access to faster internet. When you leave home, they will fall back to the case connection.

Adding Wi‑Fi Networks via the Portal

Wi‑Fi networks can also be added and managed through the Mavis Management Portal without using provisioning mode. In the portal, navigate to Settings → Wi‑Fi Preferences. Here you can see all saved networks listed with their name, SSID, and priority. Each entry has an Edit and Delete button. To add a new network, press Add Wi‑Fi and fill in the following fields: Wi‑Fi Name (a label for your own reference, e.g. “Home Wi‑Fi”), SSID (the exact network name broadcast by your router), Password, and Priority. Press Add to save.

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Software Updates

Software updates are delivered automatically when the glasses are connected to the internet. Updates improve performance, security, and add new features without user intervention.

Mavis Technologies Ltd will provide security updates for this product for a minimum of 5 years from the date the product is first supplied (the date of purchase). This defined support period is published at www.mavistech.uk/security-update-support-period.

Keeping Your Glasses Secure

• Choose a password for your Mavis account that you do not use anywhere else. Longer is better than complicated — three or four unrelated words works well and is easier to say and to remember.
• Leave automatic updates switched on. Security updates are installed automatically, and Mavis provides them for at least five years from the date your product was first supplied.
• To check your glasses are up to date, open the Mavis Management Portal and look at Device Management. It shows whether your glasses and case are connected and which software version they are running.
• Mavis will never ask you for your password by email or telephone. If you receive a message asking for it, please report it to support@mavistech.uk.

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Safety and Care

Users should keep the glasses clean and dry, avoid extreme temperatures, and always carry the smart case to ensure charging and connectivity. The device should not be opened or repaired by the user. See “Important Safety Information” at the start of this manual for rain‑resistance, intended use, and battery replacement guidance.

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Regulatory Information

To ensure correct and safe assembly, use, and interconnection of the equipment (where applicable), and to operate the equipment only as intended by the manufacturer, please observe all instructions, ratings, and warnings provided in this manual and on the product labelling.

Radio Interfaces

Frequency bands in which the radio equipment operates:

• Wi‑Fi (Smart Glasses and Smart Case): 2400–2483.5 MHz
• Cellular LTE‑FDD (Smart Case, SIMCom A7683E‑LAXS module): Band 1 (1920–1980 / 2110–2170 MHz), Band 3 (1710–1785 / 1805–1880 MHz), Band 5 (824–849 / 869–894 MHz), Band 7 (2500–2570 / 2620–2690 MHz), Band 8 (880–915 / 925–960 MHz), Band 20 (832–862 / 791–821 MHz)
• GNSS, receive only (Smart Case): approximately 1559–1610 MHz (GPS L1, Galileo E1, GLONASS L1, BeiDou B1); receive‑only and not a transmitting frequency

Maximum radio‑frequency power transmitted in the frequency bands in which the radio equipment operates:

• Cellular LTE‑FDD (SIMCom A7683E‑LAXS, all bands listed above): 23 dBm ±2.7 dB conducted
• Wi‑Fi (Smart Glasses, ESP32‑S3): 13 dBm
• Wi‑Fi (Smart Case, ESP32‑C6‑MINI‑1‑H4, Espressif module with integrated antenna): figure per Espressif module datasheet and certification

Radio Frequency Human Exposure

Smart Glasses: this device has been tested and is approved for normal wear on the head in typical use conditions.

Smart Case: to comply with RF exposure requirements, the Smart Case must be kept at least 20 cm (8 inches) away from the body during use, for example carried in a bag, pouch, or shoulder strap rather than in a pocket against the body.

Simplified EU and UK Declarations of Conformity

Hereby, Mavis Technologies Ltd declares that the radio equipment type SG201, SG202, CA201, CA202 is in conformity with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:

www.mavistech.uk/eucomformity

Hereby, Mavis Technologies Ltd declares that the radio equipment type SG201, SG202, CA201, CA202 is in conformity with S.I. 2017/1206 (the Radio Equipment Regulations 2017). The full text of the UK declaration of conformity is available at the following internet address:

www.mavistech.uk/ukcomformity

Manufacturer

Mavis Technologies Ltd
34–38 Guildhall Rd, Northampton NN1 1EW, UK
Email: info@mavistech.uk

EU Authorised Representative

Belichberg GmbH
Legal form: GmbH (Gesellschaft mit beschränkter Haftung)
Registered address: Erlachgasse 65/1, 1100 Vienna, Austria
Business purpose: Provision of IT services related to renewable energy generation systems
Commercial Register Number (Firmenbuchnummer): 468003s
Commercial Register Court (Firmenbuchgericht): HG Wien
Company seat (Firmensitz): 1150 Wien
VAT Identification Number (UID): ATU72155614
Managing Director (Geschäftsführer): Herr Bubelich Mykola, MSc
Phone: +43 660 9151003
Email: info@belichberg.com

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Support

For assistance, users can contact Mavis Technologies through the official website or support email:

Email: support@mavistech.uk
Phone: +44 1604 312731

You can also message support directly through the Mavis Management Portal — see “Messages” under Mavis Management Portal above.

Reporting a Security Issue

To report a security vulnerability in a Mavis product, please email support@mavistech.uk with “Security” in the subject line. See our Vulnerability Disclosure Policy at www.mavistech.uk/product-security-reporting-a-vulnerability for how we handle reports and the timelines you can expect.

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