Battery volume:140mAh
Loud speaker size: diameter 10mm
Charging voltage:DC5V
Speaker impedance:32ohm
Working time: music 6-8h call 8-10h
Version: V5.0
Rated power:20mWx2
Working voltage:DC3.7V
Frequency response:20-20KHz
Built in Microphone
50 in stock
Battery volume:140mAh
Loud speaker size: diameter 10mm
Charging voltage:DC5V
Speaker impedance:32ohm
Working time: music 6-8h call 8-10h
Version: V5.0
Rated power:20mWx2
Working voltage:DC3.7V
Frequency response:20-20KHz
Built in Microphone
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