Features: Perfect for the Driving Range or Out on the Golf Course! Precise, Accurate & Reliable Smart Digital Interface Display Readout Helps to Improve Your Golf Game & Depth Perception (2) Selectable Modes: Pin-Seeking & Distance Measuring Magnification Zoom Sight Simple Button Control Operation Comport & Portable Handheld Design Battery Operated Wireless Performance Adjustable Manual Focus Eyepiece Lens What’s in the Box: Rangefinder Storage / Travel Case Battery Technical Specs: Measuring Range: 5.4 - 437.0 Yards Selectable Units of Measure: Meters / Yards Optical Objective Lens: 21mm Magnification: 6X Field of View: 7.5° Diopter Adjust Range: +/-4 Accuracy: +/- 0.2% Yards, +/- 1Meter Battery Operated: Requires (1) x ‘CR2’ (Lithium, 3V), Included Dimensions: 4.