The Native Instruments Traktor Kontrol X1 Mk2 is a double deck controller that comes with a travel case. It has a USB input and is powered by USB. The controller has a range of features including pitch control, autoloop, LED lights, RGB backlit buttons, and a auto BPM function. In addition, it comes with a range of effects and enhancements such as reverb, dub echo, echo, filter, distortion, pitch shifting/harmonizing, flanger, loop/sampler, roll, phase-shift enhancement, and delay. The unit is portable and has a plug and play design, making it easy to use. This controller is perfect for DJs who want a reliable and versatile unit for their music needs.