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Rechargeable
lithium ion battery: Capacity:
3.7V/70 mAh;
Input: DC 5V/50mA; Output:
5mW; Impedance:
32O; Frequency response:
20Hz-20KHz; Signal
noise ratio:=75dB;
Wireless V 5.0;
Transmission range: 10m
LED indicator
light (red while charging, white
flash when in
pairing mode, turns solid when
successfully
paired) Built-in microphone for
taking/making
calls. Approx. playback time: 2.5
hours Item must
be charged prior to first use,
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