Aomekie&nbsp;Marine Military Binoculars for&nbsp;Adults 10x50 Waterproof Binoculars with Rangefinder Compass BAK4 Prism FMC Lens for Birdwatching Hunting Boating (Green) 10x50 Binoculars:Binoculars floating with 10x magnification and 50mm large objective lens.22 mm eye relief, 6.8mm exit pupil, and field of view is 396 feet at 1000 yards / 132 meters at 1000 meters.With 5 diopter left and right diopter ring, You can adjust the distance for better viewing without glasses and for fine focusing.The eyecups can be folded easily so you can operate it with glasses. Binoculars with Rangefinder Compass:Night vision binoculars illuminated compass built-in for direction location, with an internal rangefinder for calculate the distance and size of the object on the left eyepiece directly. Perfect night vision binoculars include batteries(LR936/AG9), the ruler and the compass illuminated by the light button, provides the maximum brightness of the image even in low light conditions(not totally dark), such as at dusk and dawn. Waterproof Fogproof Binoculars: This binocular come with Nitrogen-filled waterproof, fogproof and Anti-shake design. O-ring sealed for complete waterproof protection and float on water so no worries if dropped into the water; Dry nitrogen-purged and sealed to prevent fogging and moisture damage in all weather conditions. Non-slip rubber armor absorbs shock, comfortable to hold and use and highly durable. BAK4 Binoculars: High refractive index BAK4 Porro Prism eliminates the stray light and improves color reproduction to 99.99%. Green FMC anti-reflective coating reduces the reflected light in the objective lens and improves light transmission, image brightness and image sharpness. Binoculars with Bag and Strap:It is easy to carry and store. Durable rubber armored coating is comfortable to hold and rugged enough to stand up to any conditions. Ideal For Travel, Concerts Outdoor Activities, Bird Watching, Climbing, Hunting, Archery, Hiking, Camping, , Boating, Target Shooting, Water Sports. It is a perfect Birthday Christmas Halloween Thanksgiving Day Gifts. Magnification:10x Field of view at 10x:(132m/1000m) Angle of vision:7.5 Degree Exit pupil diameter:6.8mm Exit pupil distance:22mm(Long eye relief for eyeglass wearers) Diopter adjusting range:-5~+5 DIOPTER Prism type:Multi-coated Porro BAK-4 Housing:Rubber