Barska's Deep Sea Binocular is designed specifically for the nautical and boating enthusiast. 7x magnification provides the steadiest images possible, even under rough sea conditions. Compact objective lens provides maximum light transmission in a smaller, lightweight body. Features an internal range-finding reticle and directional compass, specially designed for nautical navigation. Fully coated optics, BAK-4 prisms, and porro lenses ensure crisp, clear imaging. Rugged rubber armor covering that provides a sure and secure grip. 100% waterproof, shockproof, and fog proof. Includes carrying case, lens cloth, and neck strap. Protected by Barska's Limited Lifetime Warranty.