NH1 Wireless Office Headset
Description
● Bluetooth headset
● 3.5 stereo surround sound
● Bluetooth Version：BK5.0
● battery capacity：3.7v/400mAh
● Playing time: about 8 hours
●Driver diameter:40mm
●Sensitivity:116±3dB at 1kHz
●Speaker impedance:32 ± 15Ω
●Frequency response:20Hz-20kHz
●Microphone sensitivity: -42db±3db
●Charging time: 1-2 hours
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