1. Bluetooth 5.3 solution, MICRO USB charging
2. Support almost all Bluetooth devices and mobile phones
3. Support music playback, not connected to the mobile phone can double-click the middle key to switch between Chinese and English
4. Volume + - button, up and down song switch, pause playback
5. High quality chip, Bluetooth 5.3, low power consumption, long standby
6. Call function, answer/reject calls, and dial back the last code
Package: Manual +usb charging cable + headset