The Native Instruments TRAKTOR KONTROL Z1 F1 and 2 X1s MK1 DJ Controller set includes four tabletop controllers with multicolor designs. Each controller features USB, RCA, DC power, and 1/4" headphone input/output ports. The controllers offer filter and FX control, along with a 3-band EQ, crossfader, cue mix, and level meters. With 16 pads and two channels, this set is ideal for DJs looking for precision and versatility in their setup. Made by Native Instruments, these controllers are designed for professional use in the music industry. All units work and are from my personal collection. Three units have skins from 12 inch skins. Three units have custom knobs from dj tech tools. There are two dust covers for the two x1’s. There are two stands that are also a carrying case. Also included is a soft padded enclosed case for the z1. Again two x1 mk1’s, z1mk1, f1. You can use the two x1’s to control four decks at once. This is a full modular set that is complete and ready for your software which is not included. There are only two usb cables included.Alos included is a brand new twelve inch skinz in red for the x1.