The UZI 600 yard Laser Rangefinder features a Fog Filter, Flagpole Scan, and Speed Measurement. The extra features allow you to scan a specific item and lock in on it to the exclusion of anything around it, measure the speed of a moving object, and prevent errors caused by fog. The lightweight 5 oz. the design uses one CR2 battery (not included). Features and Specifications: Up to a 600-yard range Waterproof 6X magnification 21 MM objective lens Runs on one CR2 battery (not included +/- 1-yard accuracy Additional Items Included: Carry pouch, Neckstrap, Lens cloth Item Weight (Oz): 5.7 with pouch Item Dimensions, Length x Width x Height (In): 3.50 x 2.50 x 1.25