Drive :8.6mm

Frequency Range:10Hz - 20KHz

Impedance:16Ω

Sensitivity:97dB

Bluetooth version: V4.1

Distance: >10m

Charging time: 1.5hours

Continuous talk time: 3.5 hours

Product size: 85mm * 55mm * 31mm

Battery: 2200mA self-charging about 15 times

Charging time :2.5 hours

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