It is well known that Numark was one of the first companies to come out with the four channel controller for DJs, and here they have done it again. Truly a company that listens to what the people want, this DJ controller has everything that you need. One of the new things added on to this controller is the dual USB outs, which allows for the DJ to have two laptops playing simultaneously. The built in hi-res display allows for you to monitor BPM, time remaining, and pitch adjustment. Not only is this a great hardware, it comes with the full version of Serato DJ, allowing you to just plug in and play.