https://gaming.tobii.com/product/eye-tracker-5/

Price: $229

Description:

Tobii Eye Tracker 5 is the next generation of head and eye tracking, engineered for PC gaming. The only device capable of tracking both head and eye movements for game interaction, esports training, and streaming, Tobii Eye Tracker 5 is a revolutionary new way to play and compete in your favorite games.

The SELF Institute