mini speaker support SD Card,U-flash, 3.5mm audio output built-in ... device:A,memory card,such as SD/MMC card,U-Disk,etcB,mobile device,such as PC,mp3/ ... speakerinterface:USB,SD card,3.5mm stereo jacksupport resource:U-disk,MMC/DC card,PC,MP3/MP4Power supply: ... electronical parts ∨ workshop assembly∨ our final advantage:high quality with low price accessories: 3.5mm audio cable:1pcsUSB cable1pcsfunction: ...