Feature:

--Bluetooth-compatible glasses speaker: dynamic drive, unique sound cavity design, avoid hearing impairment
--In-ear design helps you keep an eye on your surroundings, avoid danger and enjoy music
--Open solution: allows you not only to listening to music, answer calls, but also to hear notifications from glasses, while listening to the world around you
--The sunglasses have built-in noise-canceling microphones that allow you to make and receive calls
--Transmission distance: 33 feet (10 meters)

Description:

Product Name: Smart Glasses
Lens: anti-blue light lens;
Lens material: acrylic;
Frame material: ABS+PC;
Speaker type: dynamic speaker;
Microphone: -40dB±3dB;
Compatible profiles: A2DP, AVRCP, HSP, HFP;
Transmission distance: 33 feet (10 meters);
Battery: Rechargeable Li-ion 75mAh;
Continuous playback: 3-6 hours (normal volume);
Standby time: 10 days;
Charging time: 2 hours;
Waterproof grade: IP7;
Bluetooth-compatible version: CSR5.0;
Working temperature: -10°C-+50°C Humidity 0-90%;

Packing list:

1 x Bluetooth-compatible glasses
1 x USB cable
1 x glasses cloth
1 x instruction manual
1 x packing box
Note:
1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding.
2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.