[1000YDS Golf Rangefinder]-A cost-effective and excellent rangefinder that provides you external angle switch, golf slope compensation (recommended hitting distance), flagpole lock and vibration functions. Also featured with 1000 yards range, ±1 yard accuracy, 0.5S quick measurement, built in Li-ion battery and low battery indicator., [Slope On & Pin Lock Vibration]-When the Pin overlaps with the background, press and hold the measurement button to start scanning. When recognized the flag, it will lock the measurement data and trigger a vibration to remind. In slope-on mode, angle, sight of line distance and golf compensation distance are displayed., [Slope Off for Tournament Legal]-This mode is suitable for tournament. When the angle switch is off, the angle value will not be displayed while it still locks the flag and has pulse vibration. In this mode, only line of sight distance(straight line distance) is displayed., [Easy To Use]-One button to measure and one button to change unit(Meters and Yards). Light weight, portable and durable, the size is only 18.104.22.168 inches and the weight is only 4.3 ounces. It is very suitable for carrying and measuring when playing golf or hunting. The lens is fully multilayer coated which can enhance light transmittance and reduce reflected light to give you a clear view., [Technical Support]-24 hours full-time service, 1 year warranty, lifetime technical support. If you have any questions, please feel free to email us and inform your order number and the problem which you met, we will satisfy you with professional technical support.