ESSLNB Marine Binoculars 7X50 Compass BAK4 Prism with Night Vision Rangefinder Strap and Bag 100% IPX7 Waterproof For Hunting Bird Watching Boating

Binoculars military: @@@asCeFKfJ9lTT9Rf/NIt9IYK6XjLeFSk5@@@ specifying calculator dial on the left eyepiece, you can directly calculate the distance or size of objects. And illuminated compass for direction location when you are in dark environment. Nitrogen gas inside the waterproof binoculars for adults and O-ring sealed for waterproof protection to prevent dust-proof,fogging and moisture damage. So that it can under one meter depth, 100% waterproof and floating in water for 30 minutes. 50mm BAK-4 prisms and 23mm eyepiece represents the higher refractive index rate, brighter edges of the field of view (396 feet at 1000 yards / 132 meters at 1000 meters), as well as circular shape of the exit pupil, which means more light will be transmitted to the entire field of view. And Fully Multi-Coated objective lead free glass and multiple layers of anti-reflective coatings ensures that the image you view will be as bright and sharp as possible, delivering 99.5% total light transmission. Adult binoculars high quality with both oculars focusing systems. Two left and right diopter adjustment rings can focus sharp optics to meet the different requirements of vision based on your individual left and right eyesight. The eye cups can be folded down for use with glasses easily; Non-slip and ergonomic rubber design offer a secure grip and heavy-duty rubber armor provides great shock resistance. Made of durable rubber armored coating is comfortable to hold and rugged enough to stand up to any conditions. Eyepiece with eye cup avoid stray light which can provide you a ideal observe condition. Range finder binoculars with bag and strap, easy to carry. Rubber covers protect lenses and eyepieces. It is suitable for navigation,hunting, bird watching and other outdoor activities. Marine binoculars with compass: Internal rangefinder and compass can be lighted when you are in low light condition. Large 50mm BAK4 objective lens, even in low light conditions(not totally dark), such as at dusk and dawn, it can also provide the maximum brightness of the image.