600M LASER RANGEFINDER WITH 6X OPTICAL ZOOM: The laser rangefinder can measure distance from 5 to 600 meters, provides fast measurement with +/- 1m accuracy, gives you the confidence to choose the right club at every time. 6x optical zoom to accurately measure overlapping objects, high quality LED display, and multi-coated optics for easier reading. 4 MEASUREMENT MODES & 2 UNITS OF MEASUREMENT: Distance measurement (2 modes: Single distance measurement and Continuous measurement) + Fog mode + Flag lock mode + Speed search mode. Quickly switch the measurement unit - Meters / Yards according to personal preference. GOLF MODE: Advanced target lock function: Golf mode to automatically lock the pole and measure the distance of the target. mast, The other objectives were protected behind the mast. Perfect for golf, fishing, hunting or outdoor activities. PORTABLE DESIGN: Lightweight, IP 54 waterproof level, easy to grip and comes with bag and lanyard belt-mountable, allowing for optimal mobility and portability for every use. CLEAR VISION: Diopter adjustment knob (5D) for those with low vision or planning to use without eyeglasses. lens coating ,all-optical surface multi-layer coating ,increase light transmission ,The adjustable eyepiece ,so that the user can see the image clearly