... Supporting SD/MMC Card and USB disk. With digital screen multifunctional keys With digital screen MP3 Decoder Module Item:ES-212M ... automatic memory function,replay from the last song with the last volume what is storage.Product including:MP3 decoder,shell,controllerApplication ... audio,multimedia speaker,Subwoofer, AV amplifier, ELectronic toy and so on. With digital screen MP3 Decoder Module