The white CDJ-850/DJM-850 Complete Rig System from Pioneer is designed to provide a complete rig for DJing with CDs and digital audio. It includes 2 white CDJ-850 performance multi players and a 4-channel DJM-850 DJ mixer. With it, you can mix audio from CDs as well as external USB media. Compatibility with Pioneer's rekordbox software allows you to organize your tracks for performing. The CDJ-850s each have a 260mm jog wheel for controlling your tracks as well as a display that shows both your music list and your tracks WAVE form. In addition to playing back audio from your own sources, the CDJ-850 can also act as a controller for digital DJ software. Both of the included CDJ-850s can be connected to the DJM-850 mixer for performance and live mixing. The 4-channel DJM-850 has an integrated USB soundcard capable of 24-bit/96kHz audio capture. Its integrated effects section provides a variety of sound manipulation tools including Filter, Crush, Noise, and Gate effects as well as Delay, Echo, and Reverb. Each channel also features its own 3-band EQ.