Native Instruments' Z2 mixer. This item is listed as junk because it is missing knobs, the left and right vertical faders, and the crossfader. It is recognized as an interface, so if you have TRAKTOR, you can connect it to a PC via USB and control the internal mixer in TRAKTOR; sound will play and you can control the faders. TRAKTOR PRO 3 license included. You may be able to operate it as a mixer by installing an Innofader, etc. Please understand that this is being sold as a junk item. Included items: Power adapter USB cable TRAKTOR PRO 3 software (with transfer license) TRAKTOR KONTROL Z2, a 2-channel DJ mixer with filter and FX functions. - Model name: KONTROL Z2 - Brand: TRAKTOR - Number of channels: 2 - Connection terminals: USB connection - Functions: Filter, FX, Macro FX Thank you for viewing.