The Swing Speed Radar is a small, affordable microwave Doppler radar velocity sensor that measures the swing speed of golfers. Whether a novice or professional, the Swing Speed Radar from Sports Sensors will help you maximize your distance and control to take your game to the next level. A valuable aid for players of all ages and skill levels, the Swing Speed Radar is a powerful tool for coaches and instructors everywhere. Optimize your clubhead speed with your own personal Swing Speed Radar as you practice on your own in the backyard, garage, basement, etc, as well as on the driving range or during practice rounds. No need to hit an actual golf ball-use a wiffle ball, Birdie Ball, sponge ball or equivalent to simulate a real ball, but swing at a ball replica to release the club properly. No need to attach device(s)to the clubhead or shaft. Use any club-switch clubs conveniently and keep swinging. Can also be used for Tennis, Football, Baseball and Softball