... support SD card/USB used for car audio, mp3 player,subwoofer Products nameUSB mp3 module/decoder for car audio mp3 playerMode No.ES ... USB Disk and SD card to play musicApplication Mini reader, Car audio, Audio combination, Electronics toy and so onShell color ... audio combination,Car audio,multimedia speaker,Subwoofer, AV amplifier, ELectronic toy and so on USB mp3 module/decoder for car audio mp3 ...