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Huzhou Honggao Decoration Engineering Co., Ltd.

Bluetooth version: V5.0;
Transmission distance: 10m;
Drive unit: 10mm; 
Sensitivity: 92dB 3dB; 
Frequency response range: 20Hz-20KHz; 
Call duration: 3 hours; 
Headphone battery capacity: 35mAh/3.7 V;
Battery capacity of charging bin: 270mAh/3.7 V@@Double-click: double-click the previous song with the left ear, and double-click the next song with the right ear;
Three taps: the volume of the left three taps decreases, and the three taps on the right ear increase the volume;