1) Serial communication control, baud rate 4800 or 9600 available; 2) IR remote control (remote controller & IR connector need to purchase); 3) Key control (keyboard plate need to purchase); 4) Jukebox function, playing mp3 file when inserting a coin (1~60 minutes play time for setup); 5) Under serial communication control, playing specified mp3 file in named directory (original creation); 6) Get name of playing file; 7) Get playing time of file; 8) Normal/Loop/Random…etc. play mode availa