Detailed description: Support songs' language: chinese, english, vietnamese, tagalog, spanish, japanese, russian, thai, korean, french, hindi, indonesian, italian, latin Magic sing-along: select songs directly from the 2 wireless digital microphones (included), or from the wireless remote controller, or from the karaoke machine front panel. Features: vocal on-off , echo, key control, tempo, melody volume control, favorite songs reserve, random play, repeat, continuous play; compatible: dat, avi, vob, mp3, jpeg, mpg format; .Download the latest song or movie from any sources by user and upload them to hdd hardrive(160gb optional) or sd card (1gb included) 1pc sd card can contain more than 20, 000 midi songs .Wow! 4 singers sing together!!!support 2 wireless digit microphone with 18 control buttons and 2 wired digit microphone with 16 control buttons at same time. .You got score of your singing performance, and you got even lots applause from the machine !! Playing format: traditional one only play midi songs(only music, no vocal), our karaoke system also play original songs with vocal and live background; play vob(dvd), dat(vcd), mp3, mp4, avi(cd + g), jpeg, mpg media format. .Fully customize song listing ability. Create your own song list from the provided software. Only your favorite songs on the list, and nothing else! .Full customize background function. Interchangeable background for user to add their favorite one .Live colorful background and music with vocal on/off ; lyric on the tv screen; singalong karaoke functions .Cope sd card to hard disc or from hard disc to sd card, no computer needed. .Edit functions such as move/delete/rename/copy, no computer need. .Programming / reservation available while it is in play. The reserved songs quantities are unlimited instead of only reserving up to 20 songs. .Full karaoke function remote controller Compatible with ntsc / pal tv system Input and output: