1.Support dual screen (TV+VGA),mouse and touch screen; 2.Support up to 2TB SATA 3.5" standard hard drive;can load and playmore than 10000 MTV songs with vocal on/off 3.Easilly add up new songs thru SD or USB cable to pc; 4.Support VOB,DAT,AVI,DIVX,MP4,MP3,MPEG multi format; 5.Select songs through SONG NO.,ARTIST,SONGS TITLE,LANGUAGE,etc. 6.Support DVD file with vocal on/off. The ideal professional karaoke system for home and public entertainment.