Ranges: Baseball/Softball/tennis: 10-110 MPH (up to 90 feet) Auto racing: 10-200 MPH (up to 1,500 feet) Displays fastest speed once trigger is released Easy-to-use, point-and-shoot pistol grip Large, clear LCD display.NOTE: batteries need to be installed appropriately for the item to turn on and function. An easy point-and-shoot speed gun with /- 1.0 MPH accuracy Can track the speed of a ball from 10 feet up to 110 MPH Large, clear LCD display Displays fastest speed once trigger is released Measures 4.3 x 8.4 x 6 inches (W x H x D); 2-year warranty Knowing how fast a player pitches or runs can instantly influence a coaching decision. Enter the Bushnell Velocity speed gun, which tells you the speed of an object within plus-or-minus 1 mile per hour. The Bushnell Velocity is outfitted with digital signal processing technology, which can measure the speed of a baseball from up to 90 feet, or a moving vehicle from as far as 1,500 feet. As a result, it's a breeze to take a player's 40 time or measure the speed of a tennis serve. The Velocity is also a breeze to use, with a point-and-shoot pistol grip that displays the fastest speed timed once the trigger is released. The Bushnell Velocity radar gun offers easy point-and-shoot operation that can be used for tracking everything from race cars to pitching speeds. A large LCD display makes it easy to read the speed. Specifications: Baseball/softball/tennis range: 10 to 110 mph (90 feet away) Auto racing range: 10 to 200 mph (1,500 feet away) Accuracy: /- 1 mph Dimensions: 4.3 by 8.4 by 6 inches (W x H x D) Weight: 19 ounces Warranty: 2 years Operating Tips: To ensure accurate speed readings, be sure to keep your target's direction of travel in a direct line with the speed gun, and not perpendicular. The Velocity Speed Gun will measure the relative speed of a target as it moves towards or away from the Speed Gun. If the target is in a direct line, the measured speed will be accurate within /- 1 mph. If you move either right or left of the target, the displayed speed readings will become progressively less accurate, with the indicated speed decreasing as you move off this centerline. This happens due to the "Cosine Effect", common to all Doppler based radar devices. Be sure to use only fresh, alkaline "C" batteries in the Velocity Speed Gun, both inserted positive (tip) end first, with the negative end of each battery facing you (towards the battery cover).