TRUSMI W15-011 ENC ZINC ALLOY METAL SEMI-IN-EAR WIRELESS EARPHONE - GREY

Bluetooth version: V5.4
Earphone Battery capacity: 30mAh
Charging case Battery capacity: 300mAh
Charging time: 1.5hrs around
Standby time: Up to 180hrs
Play time: 5hrs
Transmission distance: 10m (with no obstacle)
Speaker size: Φ13mm
Speaker sensitivity: 117±3dB
Impedance: 32ohm
Frequency range: 20Hz～20KHz
Microphone sensitivity: -42db±3dB
Rated input: DC 5V\1A
Audio interface: TYPE-C