SPECS: Measuring range: 10-370 yards 6.5" x 4.5" x 1" Technology: Bluetooth Provides golfers with complete swing and ball flight metrics found in professional launch monitors, including launch angle, apex, spin, carry/total distance, smash factor, launch angle, swing speed, and ball speed Use Swing Caddie app to access spin numbers via cellular device, while data is tracked in real time Calibrates atmospheric pressure sensors Displays clubface at impact Adjustable loft angles Uncompromised precision Voice output of distance Most current Doppler radar technology Remote control for convenience Design: Portable size IOS or Android