Amazon.com: Skywin VR Tracker Straps for HTC Vive System Tracker Puck (2 Pack) - Adjustable Straps for Hand Foot Object and Full-Body Tracking in Virtual Reality : Video Games
HTC Vive Virtual Reality Object Tracker 3.0 in Black | NFM
HTC Announces Face-tracker for Vive Pro and Vive Tracker 3.0