HTC Vive will get a $220 plug-and-play eye-tracking aGlass device in May

Eye tracking is one feature that could could benefit the performance and affordability of high-end virtual reality headsets. The HTC Vive should become the first mainstream headset to put that theory to the test.

A Chinese startup known as 7invensun (pronounced seven-in-ven-sun) is announcing it will be releasing  a new eye tracking module for the Vive next month. The module is called the aGlass and it will be available for “limited pre-order sales” next month, according to HTC. The company is referring to this first roll-out as a developer kit, but preorders are open to anyone.