"The Behringer CMD Studio 4A provides all the tools needed to learn the basics of DJing - or to work the dance floor into a virtual frenzy. This is no crippled budget controller; Studio 4A has the very same features you'll find on the bigger, more expensive controllers. And the Studio 4A not only includes those features - it actually improves on them. Full-Sized Faders Tiny pitch faders just feel wrong, so They broke out 100mm faders for Studio 4A's pitch controls. 60 mm channel faders translate into smoother mixes, so They added those as well. Large Platters Another area where most controllers fall short is platter size. The trend is smaller and smaller platters, in an effort to knock the overall size of the controller down. They say bigger is better, so the Studio 4A packs 6"" touch sensitive platters that work the way you've come to expect coming from industry standard equipment. After the faders, the platter is your main contact point on a controller shrinking that down to a tiny little rubber disc just isn't satisfying. Built In Audio Interface So you buy a controller and get it home, only to find out that you have to go right back out and buy a soundcard? They built a 4-out USB sound card into the Studio 4A, so you're ready to go right-out-of-the-box. This high-quality audio interface has 24-bit converters and provides ultra-low latency operation in either Windows or OS X. Keep Your Eyes off the Scr"