The cl300 is designed to provide precise +/- 1 yard readings with a maximum distance of 500 yards to a reflective target and 300 yards to a tree.The heavy-duty housing provides water-resistant protection and an ergonomic fit that sits comfortably in your hand.The cl300 features can mode for constant ranging.Requires two aaa batteries (not included).Magnification: 5xMin. Distance: 300 ydsMax Distance: 500 ydsProofs: Water Resistant