The Ultraoptec LR1 is a handheld 6x25 laser rangefinder for measuring the distance to a target, used by hunters, shooters and golfers. You look through the 6x magnification monocular eyepiece, aim at the target and press the button to read the distance on the display. The 25 mm objective lens gives a bright view in daylight. We could not find the maker's specifications for this model, such as maximum range, accuracy and battery type, so please check the packaging for these details.