[Philip Lelyveld comment - this is a tethered mobile-based product. Zeiss's strength is the high quality of their lenses.]
The headset, with the smartphone slotted in, is connected to your PC via a USB cable, and the Zeiss VR One Connect uses the smartphone’s built-in motion sensors to provide head tracking. To control the games, a pair of wireless Bluetooth controllers are also included.
These controllers can sense three degrees of freedom (3DoF) motion thanks to sensors built by PXL Vision.
Releasing at the end of 2017, the Zeiss VR One Connect, which comes with two wireless controllers and a USB cable, along with the required software, will cost $129 (around £100, AU$160).
A bundle which includes the Zeiss VR One Plus headset will also be sold for $199 (around £150, AU$250).
See the full story here: http://www.techradar.com/news/zeiss-vr-one-connect-puts-virtual-reality-pc-games-onto-a-smartphone-headset