M7 Wireless Headset Bluetooth-compatible 5.0 Stereo Waterproof Automatic Answering With Fm Radio Function Helmet Earphone black

Description

After installing the headset to the helmet, with the help of wireless technology, it can answer calls, control the state of playing music, etc.. Frequency range: 2.402GHz~2.480GHz. BT distance: 20~30m (varies by mobile phone). Lithium battery capacity: 3.7V/500mAh. Charging time: about 2 hours; Standby time: about 360 hours.