Features： 1、New Semi Open Hearing: Let you say goodbye to the discomfort of wearing headphones for a long time, break the environmental isolation, and let you enjoy music more freely and safely. 2、Ultra Light Memory Frame: High toughness, classic frame design, humanized design is more in line with the human face outline. 3、HIFI Level Sound Decoding: After professional tuner debugging, with hardware to achieve high definition music playback, clearer voice. 4、Freedom to Answer: Perceive the surrounding environment, accurately transmit the sound source, enjoy not disturbing people, listen to the navigation when driving, enjoy safety. Lounge Listen to music and relax. 5、Wide Compatibility: Support for aptX and for apX HD sound decoding technology. Achieve CD quality sound. Left and right speakers, directional playback, true stereo playback. Compatible with mainstream mobile phones and tablets with Bluetooth devices. Specification： Item Type: Bluetooth Glasses Weight: 105g/3.7oz Material: Resin Battery Information: Lithium battery 110mAh (shipped with built in battery) Bluetooth Protocol: Bluetooth 5.0 Transmission Distance: 10m/3.8ft Charging Time: 1-2h Usage Time: 5h, standby time 200h Waterproof Rating: IPX4 Supported System: for IOS and for Android Package List： 1 x Bluetooth Glasses  1 x Cleaning Cloth  1 x Charging Cable 1 x Instructions