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Bluetooth version: 5.3
Transmission range: 10 meters
Sensitivity: 100±3dB
Frequency response：20Hz-20KHz
Speaker：φ15.4mm
Battery：100mAh*2
Charging voltage： 5V/0.5A
Charging time: about 1.5 Hrs
Playtime: 6 Hrs(100% volume)
Talking time: about 5 Hrs
Weight: about 18g
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