... : 1. it can connect to computer, mobile phone. 2. support TF card 3. with button to control Mini MP3 Speaker Sound Box ... : Product ParameterDecoderXZG2008Remote Controlinfrared remote controlInputUSB,HOST,Support MMC,SD,MiniSD card,LINE-IN holePower inUSB,DC power supply.FormatMP3,layer1-3Stereo ... chosen, but the price will be reviewed. XZG-AP12 Portable TF Card Mini MP3 Speaker