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Products Bluetooth Headphone ANC Bluetooth Headphone TWS Wireless Earbuds Bone Conduction Headphone Bluetooth Speaker DVB-T2 Android TV Box Projector   Products  >  Bluetooth Headphone 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

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