FX Pocket Chronograph Pro Built-in 2" TFT display Calculates BC (ballistic coefficient) up to 1280 FPS Display shows: current reading, min, average, max, standard deviation, extreme spread, number of shots Built-in PRS Mode No light source needed Internal environmental sensors Utilizes Doppler radar technology Detects projectiles at velocities from 200-4500 FPS Works in all conditions Rechargeable using included USB-C cable Bluetooth capable for Android and iOS app pairing App allows multiple rifle profiles, shot string analysis, multiple ammo profiles, drop charts, etc. Includes tripod, weapon mount for Picatinny and Arca-Swiss, and protective carry case Weight: 3.7oz (104g) Dimensions: 2.97" x 2.13" x 1.18" (75.5mm x 54mm x 30mm)