What's in the Box Impact 4000 Ballilstic Rail-Mounted Laser Rangefinder Bluetooth Remote Bluetooth Remote Mounting Kit Easy Zero Tool Kit SureFit Cover Lens Cloth Custom Tools CR123 Battery CR2032 Bluetooth Remote Battery The Impact 4000; Shoot farther, faster, and more precise. For long-range competitors and open-country hunters, the Impact 4000 is the all-in-one range and ballistic problem solver that delivers point-and-shoot solutions without coming off the gun. This advanced, rail-mounted laser rangefinder provides you with range, ballistic, and weather data via the integrated GeoBallistics solver, on-board Environmental Sensors, and our patented Wind Bearing Capture Mode. Intuitive to use. Rugged and reliable. It solidly mounts to any picatinny-style rail or rings with a diving board mount. Best of all, it functions in places your smartphone can t for deadly speed and precision no matter where you are. Key Features CONVENIENT WIND/DROP SOLUTIONS Easy to read display of wind/drop solutions from the shooting position. ON-BOARD GEOBALLISTICS SOLVER Integrated GeoBallistics Solver backed by a full, up-to-date bullet library. CUSTOMIZE BALLISTICS PROFILES Ten, preloaded, customizable profiles. ON-BOARD ENVIRONMENTAL SENSORS On-Board compass, humidity, barometric pressure, and exposed temperature sensors. CONNECT WITH VORTEX RELAY Connects to the GeoBallistics App and Bluetooth Remote. Product Features Picatinny Mount Quick and Reliable Zero Wing Bearing Capture Mode Built-In Range Card Generator Waterproof Fogproof Shockproof Pairs with Third-Party Devices via the Geoballistics App Product Specifications Display Size: 1.3" Display Type: LCD Max Reflective Range: Up to 4000 yds. Tree Range: 2500yd Deer Range: 1500yd Min Range: 5 Yards Accuracy @ 100 Yards: +/- 1 Yard Length: 4.6" Height: 2.5" Width: 3.2" Weight: 16.0 oz. Impact Battery Type: CR123 Bluetooth Remote Battery Type: CR2032 Range Modes: HCD, LOS, BAL Target Modes: Normal, ELR