The dual touch-sensitive jog wheels on the KONTROL S4 hardware offer extremely precise and responsive deck control due to a new patent-pending electromagnetic technology, complemented through Native Instruments' high-resolution NHL protocol that provides superior performance over conventional MIDI.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter

In an official Intel technology blog written by Becky Emmett, the company defines Ultrabook specs and characteristics, which are quite precise in some cases and generously vague in others (to encourage innovation on the part of hardware OEMs like Dell and Hewlett-Packard that will bring this class of machine to market).

FORBES: Ultrabook: Is It A New Category?