With the Numark M4 Black you can mix on 3 channels at the same time. This mixer is ideal for the scratching DJ, thanks to its simplicity. Thanks to the 6 phono and line inputs you can connect turntables as well as CD and media players to the mixer. In addition to the 3 mix channels, the mixer has a separate microphone channel. The sound you record on this channel is adjusted with the equalizer.