In action, the small but mighty Stack Radar! 💪🏻 💥Perfect for the range, or course to measure ball speed while playing. 💥Measures swing speed and ball speed. Calculates an estimated carry distance and smash factor. 💥Superb tool for wedge distance control practice. 💥Works great both indoors and outdoors. 💥Bluetooth connection to TheStack App 💥Set speed trigger threshold at 25,35,45 or 55 mph to avoid false triggers due to fast backswing.