1.Support dual screen (TV+VGA) ,mouse and touch screen; 2.Can load & play over 100,000 MTV vocal songs of different languages with vocal on/off 3.Support up to 2 TB SATA 3.5" standard hard drive; 4.Easilly add up new songs thru SD or USB cable to pc; 5.Support VOB,DAT,AVI,DIVX,MP4,MP3,MPEG multi format; 6.Select songs through SONG NO.,ARTIST,SONGS TITLE,LANGUAGE,etc. 7.Support DVD file with vocal on/off. 8.Professional karaoke features The ideal professional karaoke system for home and commercial entertainment.