support SD card/TF card/USB Disk dual power supply by USB ... Portable Stereo Digital Speaker Main Functions and Features1, Support SD card ,TF card and USB disk, automatically read the first ... rechargeable lithium battery and USB power5.While Connecte the Mini USB cable with the PC USB interface,it could ... or other file directly from the PC to the SD or USB disk.7.with LED chargeing indicator light ...
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