Wireless transmission range :<10MWorking voltage :3.7VMax output power :30mWBattery Capacity :500..
Headphone:Speaker:40mm Impedance:32 ± 2ΩSensitivity:118DB ± 3dbFrequency Range:20Hz - 20..
Headphone:Speaker:40mm Impedance:32 ± 2ΩSensitivity:118DB ± 3dbFrequency Range:20Hz - 20..
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