As a limited edition color variation, the CDJ-400-K is a cool and sophisticated black model. The design, based on black and blue, enhances the coolness of DJ play. Included: Power cable 【Main features of the CDJ-400-K】 1) High-quality remix/DJ play with MP3 music files Equipped with a USB input terminal (Type A) on the top panel. In addition to music CDs, high-quality remix/DJ play※2 is possible using various media such as MP3 music files recorded on USB-connected flash memory and HDDs※1. You can enjoy DJ play with your favorite music library. 2) Control DJ software without using a dedicated control disc By selecting PC with the source select button, you can output on/off information and slider position information for almost all buttons (functions) externally. By connecting this unit and a computer, you can perform DJ play using music files on the PC without using a dedicated control disc for our DJ software "DJS" or Serato "Scratch Live"※3. Furthermore, since it can also be used as a general-purpose MIDI controller, it is also possible to control other MIDI-compatible PC applications. 3) "Scratch Jog Effect" for aggressive performance In addition to the normal scratch※4 function, the "Scratch Jog Effect" is equipped with three types of sound effects ("BUBBLE", "TRANS", "WAH"※5) to achieve aggressive performance, allowing you to enjoy various scratch sounds. In addition, by using a self-illuminating effect button, the selected effect mode is displayed more clearly.