beyerdynamic develops ultrasonic head-tracking surroundsound headphone system...

Headzone has been designed to provide the most accurate headphone-based 5.1 surround-sound reproduction possible from today’s DSP technology, in the world’s most compact portable package. Headzone offers a unique patented ultrasonic Head-Tracking system which locates the orientation of the listener’s head with respect to the source material and adjusts the audio accordingly. This allows complete freedom of movement, while the source material remains fixed in position, just as with a ‘real’ 5.1 loudspeaker arrangement.

As well as this, Headzone offers an advanced room simulation program which allows the user to program an ideal auditory space within which to monitor the surround audio and therefore provide the optimum “sweet spot”. Because the system is so portable, this allows you to monitor in your studio anyplace, anywhere.