Native Instruments Traktor Kontrol S4 MK3 four-channel DJ controller. It has two haptic motorised jog wheels with colour screens, RGB performance pads, a four-channel mixer with per-channel filters and the Stems controls for use with Traktor Pro. The unit is in good used condition. The pads, jog wheel lighting and screens all light up when powered on, and it has been used with Traktor Pro 4 on a laptop. I can't see any major damage on the casing, though there may be light surface wear from normal use. The laptop in the pictures is not included. Power supply, USB cable and original box are not confirmed, so please ask if you need to know what comes with it. A solid four-deck controller for home practice or gigs.Native Instruments Traktor Kontrol S4 MK3 four-channel DJ controller. It has two haptic motorised jog wheels with colour screens, RGB performance pads, a four-channel mixer with per-channel filters and the Stems controls for use with Traktor Pro. The unit is in good used condition. The pads, jog wheel lighting and screens all light up when powered on, and it has been used with Traktor Pro 4 on a laptop. I can't see any major damage on the casing, though there may be light surface wear from normal use. The laptop in the pictures is not included. Power supply, USB cable and original box are not confirmed, so please ask if you need to know what comes with it. A solid four-deck controller for home practice or gigs.