Diamond Kinetics PitchTracker Baseball Earrings

Diamond Kinetics PitchTracker Baseball PITCHTRACKER BASEBALL: captures motion data in real-time and sends it to the free PitchTracker iOS app via Bluetooth. MEASURE: Seven metics including Velocity, Spin Rate, Spin Direction, and more! DOWNLOAD: Dedicated iPhone and iPad apps (Requires iOS... Diamond Kinetics PitchTracker Baseball