1、Two Key Shortcut Operation: Two key shortcut operation, more convenient to use and easier to operate. 2、Rotation Focusing: The eyepiece of the laser rangefinder can be rotated and focused to eliminate parallax and observe easily. 3、Small and Portable: The laser rangefinder is small, portable, easy to carry, and can be operated with one hand. 4、4 in 1 Function: 4 in 1 function, can be used for distance measurement, speed measurement, height measurement, angle measurement. 5、Unit Switch: Press and hold the Mode button for 2 seconds to switch between meters and yards. Item Type: Laser Rangefinder Material: Plastic Measured Object: For Wire, For Golf Function: Distance Measurement, Speed Measurement, Height Measurement, Angle Measurement Function USB Power: 5v Product Size: Approx. 40 x 105 x 73mm / 1.6 x 4.1 x 2.9in Ranging Accuracy: Change: <300M, Accuracy +0.5M>300M Accuracy +1M Angle Measurement Range: -90° to 90° Angle Measurement Accuracy: ±1 Measuring Speed Range: 10-300km/h Measurement Speed Accuracy: 5km/h Laser Tvpe: 905 nm Visual Safety: FDA (classl (cfr 21) Field Analysis: 7° Magnification: 6 Times Objective Lens: Approx. 24mm / 0.9in Eyepiece: Approx. 16mm / 0.6in Exit Pupil Diameter: Approx. 3.8mm / 0.1in Diopter Adjustment: ±3° Focusing Method: Eyepiece Focusing Weight: Approx. 248g / 8.7oz 1 x Host 1 x Rope 1 x Storage Bag 1 x USB Cable 1 x English User Manual 1 x Cleaning Cloth