The Vive Facial Tracker is an accessory for the Vive Pro series of VR headsets that allows users to track up to 38 facial movements.
The Cleanbox CX1 decontaminates head-mounted displays, headsets, headphones, earphones, and HMD controllers using UV light.
Facial padding for the Quest 2 that comes with a special gel layer providing a temporary cooling sensation.
The Cybershoes are a VR accessory that allows players to walk in Virtual Reality. They are comparable to an omnidirectional treadmill that can be strapped to the player's shoes.