The Native Instruments Traktor Kontrol S4 is an all-in-one professional solution for DJing with Traktor Pro 2. It offers a great feeling four channel mixer, built-in sound card and a variety controls for manipulating Traktor's effects and Remix Decks. High resolution jog wheels offer a traditional means for controlling the playback and speed of Traktor's four virtual decks. For a full featured and affordable entry into the world of Traktor, the S4 is an attractive option.