... can connect to computer, mobile phone. 2. support USB, SD card 3. with button to control Mini Speaker with USB Input ... : Product ParameterDecoderXZG2008Remote Control InputUSB,HOST,Support MMC,SD,MiniSD card,LINE-IN holePower inUSB,DC power supply.FormatMP3,layer1-3Stereo ... price will be reviewed. XZG-AP15 Portable MP3 Mini Speaker Sound Box