Feature:<br> Strong compatibility, low power consumption of Bluetooth 4.1.<br> It can not only answer calls, but also listen to music.<br> Automatically switch to phone call mode when making and receiving calls.<br> Have previous/next song control, volume up/down control.<br> Ultra-light design adopts ABS and PC material to make it lighter and comfortable to wear.<br> Bluetooth devices such as Suitable for iPhone SAMSUNG HUAWEI Xiaomi iPad.<br> Fashionable design, fashionable sunglasses + wireless earphones, suitable for driving, cycling and hiking.<br> Protect vision, black polarized smart lenses can filter light and protect your vision.<br> Multifunctional glasses, foldable glasses design, hydraulic telescopic headphone rod, 270rotation for free adjustment.<br> This bluetooth earphone and sunglasses are the perfect combination of practicality and fashion. It allows you to enjoy the freedom of wireless listening and hands-free calling.<br> Main functions, answer and hang up calls, play/pause, control volume, switch between up and down songs, switch between Chinese and English, voice assistant.<br> Specification:<br> Type: glasses bluetooth headset<br> Shell material: high quality ABS<br> Bluetooth version: Bluetooth V4.1<br> Working frequency 2.4GHZ-2.480MHZ<br> Wireless connection range: 10 meters<br> Transmit power: Glass2<br> Battery capacity: 180mAh<br> Headphone talk time: 6 hours<br> Standby time: 150 hours