Key FeaturesAdaptive Slope Switch: This feature calculates how uphill or downhill your shot is and tells you the adjusted distance you should actually play. You can slide the physical switch to turn this off, making the device legal for official tournaments.Auto-Ambient Display: The text inside the viewfinder automatically changes between red and black depending on how sunny or dark it is outside, making it much easier to read.Built-in Magnetic Strip: It features an ultra-strong magnet built right into the side of the device. You can stick it directly onto the metal bar of a golf cart so you do not lose it.Flag Lock & Pulse Vibration: When you aim at the flag, the device locks onto it and gives a short vibration burst to confirm you hit the pin and not the trees behind it.Tech SpecificationsMax Range: It can measure distances up to 900 yards with an accuracy of plus-or-minus 1 yard.Magnification: Offers 7x magnification, meaning objects look seven times closer than they do with the naked eye.Weather Resistance: It has a rubberized body with sealed seams to resist rain and water on wet days.Power Source: It uses a standard CR2-3V battery and typically comes with three batteries in the box.