The 7×50 Navy One Binoculars are lightweight, durable, waterproof binoculars with individual eyepiece focusing, and optics that eliminate internal glare and ghost imaging that results in 95% light transmission at night or in low light. These Navy One Binoculars are perfect for boating or any other outdoor activity, day or night. They come with a padded neck strap, objective & ocular lens covers and a padded nylon carrying case. •Checkered texture provides slip-proof grip •Black rubber armored •Hermetically sealed and nitrogen purged for true waterproof and fog proof performance •Exclusive SPARC (Stimulated Penetration Anti-Reflection Coatings) optics eliminate internal glare and ghost images resulting in nearly 95% light transmission at night or in low light •Lightweight aluminum body passed military specification drop/shock test from 6′ and withstands a vibration test equal to 20 gravities of force •Five year factory warranty against defects, fogging or leakage •Focusing System: Individual eyepiece focusing •Magnification: 7x •Objective lens: 50mm •Exit pupil: 7.1mm •Eye Relief: 15mm •Prism type: BAK-4 Porro prism •Field of view: 7.4 degrees, 389 feet at 1,000 yards •Light efficiency: 95% •Waterproof and nitrogen gas filled •Focusing System: Individual eyepiece focusing