The Izzo Golf Speed Pro can accurately measure ball or club head speed for instant feedback to enhance your swing training sessions. We all know faster club head speeds can potentially mean farther distances, but achieving consistently faster ball speed is what really equates to improved ball-striking and distances. Includes a large easy-to-read LED display and an optional Voice feature so that you can hear your speeds. Records and saves your last 10 speed readings. Requires 5 "AA" batteries (not included). Gives you instant feedback to know you"re making improvements in your swing!