This model we have 60mah and 100mah,60mah can play about 3-4hours,100mah is up to 6hours.
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Good quality PCB Board and battery,make quality more stable,price also very competitive !
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Use it as your wireless MP3 player with TF Card.
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150mah battery ensure the long time playing
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Can play when power charging
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3in1 function-card reader/BT receiver/MP3 player