Amazon.com: HTC 3 Pack Vive Tracker (3.0) Vive SteamVR Base Station 2.0 for Vive Pro, Rebuff TrackBelt + 2 TrackStraps Full Body Tracking VR Bundle : Video Games
HTC shrinks its VR Tracker, debuts new face-tracking accessory | Engadget
How to Use SteamVR Tracking with HTC Vive Tracker or Controller Without a Vive Headset