DJ, deejay, disc jockeys.. a person who mixes recorded music for an audience (usually in a club). One DJ mixer I found was a Pioneer djm 350. It is a mixer with 4 effect types, a digital conversion and a lot more, and also records directly to a USB device. As I’ve searched, djm-350 was one of Pioneer’s popular series that is often used in club scenes! Take a peak on what it looks like:

One sample of DJ doing his thang! :p