The KL4-DJ music video player can play audio tracks, music videos and also silent video marketing content.

The venue operator can choose from a range of control options as the operational style of the venue changes. These range from full automatic play mode, an interactive playlist control mode for venue managers, and full manual control by DJs. In automatic mode, the system automatically changes the music playing in the venue according to pre-determined schedules. In full manual mode the DJ accesses an additional control screen with twin virtual video decks, allowing precise hands-on control over the music.