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BT9782

1.Bluetooth version:V5.3
2.Effective range:10 meters
3.BT Working time : 15 hours
4.Standby time:Up to 120 hours
5.Battery: 250mAh
6.Charging time:Approx 2.5 hours
7.Microphone:Bulid-in
8.Rechargeable: TYPE-C cable
9. Driver unit: 40mm
10. Rated input power : 20mW
11.Max input power : 50mW
12.Impedance : 32ohm
13.Speaker sensitivity : 100dB +/-3
14. Frequency response : 20-20KHz