... SD card to play musicApplication Mini reader, Car audio, Audio combination, Electronics toy and so onShell color ... SilverWith LED remindingWith multifunctional keys in boardWith infrared remote controllerKey function:Last song, next song, Volume ... Product including:MP3 decoder, shell,controllerApplication:Ordinary audio combination,Car audio,multimedia speaker,Subwoofer, AV amplifier, ELectronic toy ...