Tougs Golf Digital 7x Optic Telescope 800m Sport Laser Range Finder Distance Measure Two functions: Green mode for professional golf players; general mode for normal measurement (before measuring the distance, need type into the height of object) Easily operate and accurately measure with non-contact laser measurement One-touch power on/off, measuring button and one button for mode changing Automatically power off after 60 seconds without operation High amplification power and long measuring distance