Free shipping and returns

Tech Specs

Description

Smart Bluetooth Sunglasses
Stay connected in style with our Smart Bluetooth Sunglasses. Featuring built-in speakers and microphone, they let you enjoy hands-free calls and wireless music on the go. Designed with a sleek, classic frame and UV-protective lenses, they combine fashion and function effortlessly. Perfect for driving, cycling, walking, or just relaxing outdoors.

Specifications

Sound System: Stereo
Control Method: Button control
Bluetooth Chipset: AB5656B
Bluetooth Version: Bluetooth 5.3
Bluetooth Protocols: A2DP / AVDTP / AVRCP / RFCOMM / HFP / HSP / SPP / HID
Operating Frequency: 2.402GHz–2.480GHz
RF Emission Class: Class 2
Transmission Power: ≤ 9dBm
Receiver Sensitivity: -91dBm

size

Lens Width: 50mm / 1.97 in
Bridge Width: 21mm / 0.83 in
Frame Width: 150mm / 5.91 in
Temple Length: 154mm / 6.06 in
Lens Height: 40mm / 1.57 in

Battery

Battery: 400930, 3.7V 80mAh
Music Playback Time: Approx. 4 hours (at 80% volume)
Talk Time: Approx. 3 hours (at 80% volume)
Standby Time: Approx. 30 hours (no active connection)
Operating Voltage: 3.7V
Charging Time: 1 hour
Charging Input: 5V / 80mAh
Deep Standby Time: Up to 120 days (powered off, idle state)
Battery Life Cycle: ≥300 charge/discharge cycles

30-day free returns

Cancellation

You may cancel your order within 48 hours of placing it. Please allow 3-5 business days for the refund to post to your original form of payment.

Returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Additional non-returnable items:

Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted (if applicable)

Any item not in its original condition, is damaged or missing parts for reasons not due to our error

Any item that is returned more than 30 days after delivery

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at support@sentra glass .com.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you receive a damaged or defective product you have 72 hours upon arrival of the product to contact us about the defective unit. You can reach out to us here support@sentra glass .com.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should email us at support@sentra glass .com.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

Shipping Policy

We proudly offer FREE worldwide shipping via! Please note that we require 3 to 5 working days on average to fulfill your order before dispatching it. Rest-assured we are doing everything in our power to get your order to you as soon as possible! Once your order is dispatched, depending on your country or region, estimated delivery time is between 7 to 10 business days. Please consider any holidays, natural disasters or pandemics may impact delivery times.

For pre-ordered or back-ordered items:

If your order contains a pre-ordered or back-ordered item, we will ship any items we have available immediately and ship the items that are pre-ordered or back-ordered immediately when we have them available. So if you ordered more than one item on a single order and receive only a part of your item don’t worry, you will receive your other items shortly after.

Tracking your order:

You will receive a confirmation email and/or text message, if you provided a mobile phone number, containing a tracking ID and a link to follow the journey of your package. To track your package you can visit our Tracking Page.

Please allow 1 to 3 working days for the tracking information to show.

Wrong address disclaimer:

It is the responsibility of the buyer to make sure that the shipping address entered is correct. We do our best to speed up processing and shipping time, so there is always a small window to correct an incorrect shipping address. Please contact us immediately at support@sentra glass .com if you believe you have provided an incorrect shipping address.

Returns:

By placing an order on Top Trend Store, you are responsible for the cost of return shipping back to Top Trend Store. Please refer to our Refund Policy for further information on how to make a return.

Lost/Stolen Packages:

Best Trends Online Store is not responsible for lost or stolen packages. If your tracking information states that your package was delivered to your address and you have not received it please report it to your respective shipping carrier at the information provided to you on our Tracking Page. If you have any further questions on how to do this please reach out to our customer support team at support@sentra glass .com.

What features does it have?

  • Bluetooth

  • Play Music

  • Calling

  • Extended range

Loved by the SENTRA GLASS Community

Real users. Real stories. Every photo shows how SENTRA GLASS brings smart style into everyday life.

Compact Power, Unleashed

Experience hands-free freedom with our Bluetooth Sunglasses. Enjoy up to 4 hours of music or 3 hours of calls on a single charge—perfect for commuting, walking, or enjoying the outdoors. With a standby time of up to 30 hours and deep standby for up to 120 days, you’re always powered for life on the move. Stylish, smart, and always connected.

Made for multi-tasking

Transform Your Everyday Travel

Step into a new way of moving with Bluetooth sunglasses that keep you connected without distractions. Whether you’re navigating busy city streets while driving, enjoying a refreshing bike ride, or simply taking a relaxing walk outdoors, these glasses provide seamless hands-free calls and your favorite music—all while protecting your eyes. Experience freedom, focus, and convenience that truly change how you travel every day.

FAQs

Please read our FAQs page to find out more.

Can these smart glasses record high-quality video?

Yes, they come with a built-in HD camera that supports smooth 1080p video recording—perfect for everyday moments, travel, or vlogging.

What Bluetooth functions are supported?

Powered by the advanced JieLi AC7003F4 chip, these glasses support Bluetooth 5.4 for music playback, phone calls, and seamless device connectivity.

Do the lenses change color in sunlight?

Yes, the lenses feature photochromic technology. They darken under sunlight and return to clear in low-light conditions, ensuring eye comfort at all times.

Is real-time voice translation available?

Once connected to the dedicated smartphone app, the glasses offer real-time multilingual voice translation—ideal for travel and global communication.

How long does the battery last?

full charge takes around 60 minutes and offers up to 10 hours of daily use, 3 hours of continuous call or music time, and up to 15 days of standby.

Are the smart glasses waterproof?

Use this text to ansThe glasses are rated IP57 for water resistance—splash-proof and sweat-resistant for daily wear, but not suitable for swimming or showering.er questions in as much detail as possible for your customers.

Are they comfortable for long-term wear?

Absolutely. The frame is made from aerospace-grade aluminum alloy with TR90 composite, and the flexible memory alloy temples ensure a secure, lightweight fit.

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