The most cost-effective rangefinder you can find on the market to provide you reliable performance for golfing, hunting, bowhunting, and other professional application. Both models have slope functions. The slope switch is for tournament legal. Measuring range from 5 to 650 yards, with +/- 1m high accuracy and 6x magnification. The flagpole locking function supports a distance up to 150 yards (Flagpole only) and 250 yards (Aim the flag when it's unfolded). Our rangefinder can meet most user’s needs