The Pioneer DJM-750MK2 is A 4 channel It is packed with new features, and its layout has been designed and created to allow you to transfer from the home setup to the club environment with ease.  The flagship DJM-900NXS2 has been the source of inspiration for both the design and features, with some of them being directly incorporated into the 750 mixer, along with its undoubtedly superb build quality.
 
Number of channels
 4 x audio channels, 1 x MIC channel
 
 Input ports
 LINE x 4 (RCA)
 PHONO x 4 (RCA)
 MIC × 1 (XLR & 1/4” TRS Jack）
 Output ports
 MASTER OUT x 2 (XLR x 1, RCA x 1),
 BOOTH OUT x 1 (1/4” TRS jack),
 HEADPHONE MONITOR OUT x 2 (1/4” STEREO PHONE JACK, 3.5-  mm STEREO MINI JACK)
 USB ports
 USB (B) x 1, USB (A) x 1
 Other ports
 SEND x 1 (1/4” TS JACK),
 RETURN x 1 (1/4” TS JACK)