Function supports card insertion/FM/audio cable1. USB charging: Android2. Signal to noise ratio: 88db3. Bluetooth link distance: 10 meters4. Output power: 35mW5. Bluetooth frequency: 2.401-2.480GHz6. Charging time: 3 hours7. Usage time: 6-8 hours8. Standby time: 18 hours9. Dynamic horn: 40mm10. Battery capacity: 150mahFunction: Adjust volume, switch songs, answer incoming calls, reject incoming calls, hang up calls, Bluetooth playback, call replay, Bluetooth reconnection, voice prompt, battery level display, TF, EQ, pure English broadcast