The PRGR Launch Monitor from JS international has all the features you could need in a lower cost launch monitor which offers excellent value for your money. Launch monitors can help you shoot considerably lower scores because they show you exactly how far you are TRULY hitting the ball with each and every club in the bag. The PRGR Launch Monitor is a simple to use battery-powered unit that provided an array of great golf ball striking statistics and extra features. The all-important swing speed, ball speed, smash factor, carry distance and total distance estimates are all included in this great little unit. Whether you want to know how far you hit your current clubs, or maybe a friends set, or even a brand new set, this small compact unit will accurately measure all the information you need.