mini speaker support SD Card,U-flash, 3.5mm audio output built-in ... by the support of the following device:A,memory card,such as SD/MMC card,U-Disk,etcB,mobile device,such as ... PC,mp3/mp4 player,Mobile phone,etc2,it has a ... Part number:SG-589 mini portable multimedia speakerinterface:USB,SD card,3.5mm stereo jacksupport resource:U-disk,MMC/DC ...