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    Working time: 7 Hours

    (Music) /5 Hours (talking) 

     Working range 10m

    Charging voltage: 5V       

     Working current: 15-20mA      

     Output power 2×15mW      

     Charging time: 1.5H       

     Battery: 3.7V/170mAh

    (polymer rechargeable battery)       

     Standby time: about 300H