MP3 sound module, 2Gbyte Nand-flash capacity 10WX2 output sound module Key control module MP3 sound ... output ,each channel 10W, with MP3 format,support 1Gbyte Nand-flash , with USB port, you can change file easily,with 4 ... by programApplicationConsumer electronic,Alarm,security &safe etc 2X10W stereo Nand flash MP3 board