... Last USB SD audio module 2 LCD display 3 IR remote control 4 MP3/WMA/USB/SD 5 Board size ... :88*36mm TM2803 Last USB SD audio module1, Functions instructionFull functions ... , high quality1), In USB/SD card can play MP3/WMA format, and operate ... Mode, now output audio signal from USB or SD switched.Press to choose LINE IN Mode, now ...