mini u-disk and sd card speaker 1.Support MP3, WMV file 2.Read TF card/USB drive,FM radio 3.Foldable and replaceable battery. Mini u-disk and sd card speaker Specifications:1) Play music from USB,SD/MMC card ,support MP3 format2) With AUX port,also apply to PC, mobile phone ,MP3, MP4 etc.3) High-sensitive FM radio (optional)4) Built-in rechargeable Li-ion battery(650 mAh), 3 hours music playback5 ...