The Barska 8x30 WP Battalion Binocular w/Internal Rangefinder and Illuminating Directional Compass is designed to meet military standards. Whether you're ashore or on the water, this binocular is designed to perform in the most demanding conditions. The internal rangefinder allows the user to easily obtain a distance between an object. The intergraded compass features a new illuminated red light for viewing the internal compass in low light conditions. 100% water proof and fog proof to avoid moisture damage. With fully multi-coated optics and BAK-4 prisms gives crisp images and lets more light in. The Porro prism system offers greater depth perception and a wider field of view. Has individual eyepiece focus for customization of viewing. Fold down eyecups to use with eyeglasses. All Battalion binoculars are rubber armored for shock protection and a comfortable secure grip. Compass does not operate in southern hemisphere. Backed by Limited Lifetime Warranty. Includes attachable lens covers, two LR-44 batteries, carrying case, neck strap and lens cloth.