mp3 and bluetooth sunglasses

1Combination of Bluetooth and MP3:When calls come in, the  mp3 player will suspend  and shift to bluetooth operation.  When it comes back to bluetooth operation.

2 PC interface supported:USB

3Digital formats supported: MP3/WAV/WMA

4External hard drive function: Yes

5.Battery tape/capacity: Built-in Lithium lon Polymenr/3.7v,150mAh

6Maximum imput power rating:5VDC,150mA

7.Sound output mode: Stereo

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