Last week HTC announced a new accessory, the Vive Facial Tracker. Though the device is designed to mount to the Vive Pro, it turns out it is technically compatible with other PC VR headsets, provided you can find a way to mount it in the right spot. HTC’s new Vive Facial Tracker accessory promises to track 38 facial movements across the lips, jaw, teeth, tongue, chin, and cheeks.
When the company introduced the device, it only announced compatibility with its Vive Pro line of headsets. Apparently, the headset can technically work with any PC VR headset. The Vive Facial Tracker ought to work with any PC VR headset if you can find a way to mount the tracker to offer a good view of your mouth. The company is not guaranteeing the product will work well with other headsets.
More information:
https://www.roadtovr.com/vive-facial-tracker-valve-index-pc-vr-headsets/