3.1 digital speaker system with remote control FM,USB,SD card reader,Karaoke VFD display Hot sales ... in Africa OEM 3.1 digital speaker system with remote controlFM,USB,SD card reader,KaraokeVFD displayHot sales in AfricaOEM ... /50-60Hz Functions :FM/USB/SD card reader / VFD and remote controller Color box size :42.8*35*33cm******