Chip Shots two indoor golf simulators are produced by "About Golf" and not only look amazing, they utilize state of the art technology to accurately track club speed, ball speed, and ball spin. This combination produces the most realistic golf experience you can get indoors. Sensors behind the screen use doppler radar to track hundreds of points on the club head and the struck golf ball and use a powerfull computer to project your ball's flight on the 12' X 10' screeen.