S18 - USB LED IR Track Clip Pro for Track IR 5 4 FreeTrack Opentrack : Amazon.sg: Video Games
A complete guide to set up Head-tracking (Opentrack) - Hardware, Software and Controllers - IL-2 Sturmovik Forum
Run OpenTrack remotely (e.g. on a laptop w/ webcam) while running AITrack locally (e.g. on a desktop w/o webcam) · Issue #46 · AIRLegend/aitrack · GitHub
opentrack - FlightGear wiki
FREE headtracking in DCS with any webcam! (AITrack & OpenTrack Setup) - YouTube