Official Ultimate Arms Gear 20x70 Tactical Day Night Ruby Vision Binocular Kit : Includes the Binoculars, Nylon Carry/Storage Case, Neck Strap, Tripod Adapter, Lens Caps / Covers & Lens Cleaning Kit . Perfect for hunting, surveillance, sports events, concerts & boating. Featuring a Porro Prism, a built in Tripod port, and Multi Coated Lenses with Ruby colores Lens. Multi-coated Lenses are an important feature for reducing light loss. Magnesium fluoride is applied to the lens improve Clarity and reduce Glare due to reflection. These military quality binoculars have a length of 11" , a Weight of 51.6 oz, and an objective diameter of 70mm. They provide a sharp bright field of view @1000 yards-168 feet. Coated with a Stealth Black Rubber Armor to protect the binoculars from drops, scratches or bumps, these are also weather and water resistant. The Binoculars have built in finger grooves for maximum grip & control as well as a soft rubber eye rest so that you can use the binoculars securely and comfortably. The Ruby coloration is not only cool looking but further enhances light gathering ability at dusk or low light conditions. In the bright sun, they cut sun glare and reflection. They are intended to brighten dark environments, but will not allow you to see in complete darkness. The coated lenses illuminates any little light (starlight, moonlight). All you need is any hint of light .No batteries are required.