Behringer's DJ CONTROLLER CMD STUDIO 4A is a 4-Deck DJ MIDI Controller with 4-Channel Audio Interface. The CMD Studio 4A provides all the tools needed to learn the basics of DJing - or to work the dance floor into a virtual frenzy. It features Deckadance DJ software (but is also compatible with popular DJ software), Large 6" touch-sensitive high-resolution control platters, Pro-level 100 mm pitch faders and 60 mm volume faders, plus complete mixer section with crossfader, 2 channel faders, and 3-band EQ.