Classic Model / All Purpose Pocket Radar Gun Pocket Radar Classic model offers accurate speed radar in a convenient size for many uses including hobbies, traffic safety, industrial safety, neighborhood safety, scientific research and more NOT INTENDED FOR BALL SPORTS. To accurately measure ball speeds, use the Ball Coach model from Pocket Radar, also available on Amazon Manual one-button operation lets you decide what to measure and when Easily and discreetly measure vehicle speeds, bicycle speeds, skating speeds, R/C speeds and running speeds Small size of 2.3 by 4.7 by 0.8 inches (WxHxD) and only weighs 4.5 ounces with batteries. 10,000 readings on a single set of AAA batteries (included)