You must first install K song karaoke OK Valentine system v4.0.0 or later on the windows.
(Can also be installed on a windows tablet, when the car or living room KTVBOX are suitable)
This program can be used as Valentine K song karaoke OK-demand system units, to be able to use mobile phones and tablet song and the song.
Note that this program must be used with K Music and Lyrics Kara OK system (Windows platform) use, thank you.
Official website: http://www.ksonglover.com