??Tournament Legal Golf Rangefinder?Come with 3 Modes: Distance Mode, can measure all items within the scope of application(5-650 Yards), with pin-seek(170 Yards),flag-lock(350 Yards); Speed Mode, Can measuring Range of Speed: 18-300km/h, this mode ideal for the hunting or other outdoor sports; Continuous Scan Mode, can let you move the rangefinder and continuously give the Distance/Spped of all objects that show in the finder ??Pin-seeking & Flag-lock ?Together with Pinsensor technology to accurately measure overlapping subjects, perfect for measuring golf flags, hazards and wooded areas (Y/M). Note: When you operate the rangefinder, Never press the "ON/OFF" button and "Mode" button together. or it will not have any reaction ???1 Yard Accuracy??1 Yard Accuracy, 0.1~0.3s Measurement Time, this rangefinder give you a quickly and accurate data to save your game time. When you need to switch the Mode, Please press the "Mode" buttton for 1s and release it; When you measure it and need to show the data, please press the "ON/OFF" button for 1s and release it.. ??Battery Power Indicator?This one CR2 battery can be used for about 1000 times, and there is a indicator in the LED screen to alert you the battery capacity ??Handhold Size and Lightweight? Rangerfinder size 5.07 x 3.07 x 1.57 inch and N.W. 178g, perfect for carrying while golfing or hunting, measuring and surveying