BOBLOV LF1000AG 1000M Slope Golf Rangefinder Visible Slope Lights Flag Lock. 【Premium Golf Rangefinder:】 This golf rangefinder has a 6x magnification and an accuracy of ± 0.5m. The ranging distance is 650 yards. Through LED display, it can provide accurate numbers and the diopter is ± 5D,with adjustable eyepiece which providing you clearer and brighter images and data.Long press "M" for 2 seconds can switch data unit meter or code. 【Three Modes:】 Short press "M" to switch to three modes, Flag locking Slpoe compensation mode, Golf scanning mode and Speed measurement mode,Slope compensation can giving the distances needed by accurately and locking target quickly. Golf scanning mode can let you know the location of multiple targets,The speed measurement range is 18-300km / h. 【About battery:】 You can use a battery to supply power for the rangefinder. Push the battery cover of the range finder in the direction shown in the machine to open it. The rangefinder is contain batteries and needn’t to be purchased by yourself. 【Exquisite Design: 】This is a portable rangefinder. It is small in shape and weighs only 164g. The body is wrapped in soft and comfortable soft silicone material, which is skid resistant and wear-resistant. It is easy to grasp with one hand 【Safety and Support】Please do not look at the sun through this rangefinder. Rain and fog may cause measurement errors. This rangefinder supports golf, watching games, forestry, electricity and traffic surveys, etc.