【HD Powerpul Binoculars】Designed with 7X power magnification,50mm large objective lens,24mm eye relief,BAK-4 Prism,FMC film lens and 369ft/1000yds large field of view.This 7×50 marine binoculars are perfect for hunting, boating,marine,animal observing, tourism,cross-country and all outdoor activities ect..【 Marine-Military Binoculars】Meet with 5 Military Standards, Anti-knock, Impact-resistant, Anti-flooding, High ( +55°C) & low ( -43°C) Temperature Resistance; Military binoculars built-in Illuminated digital Compass and rangefinder.Even in low light conditions (not completely dark), the ruler and compass illuminated by light buttons can provide the maximum brightness of the image.【 Waterproof Binoculars】 Dry nitrogen filled and O-ring sealed for waterproof protection to prevent dust-proof,fogging and moisture damage in extreme harsh enviroment and all weather condition ; This is aslo a military marine binoculars for better waterproof protection and float on water, so no worries if dropped into the water. Non-slip rubber armor absorbs shock, comfortable to hold and use and highly durable.【 Binoculars Simple to Use】Internal center focusing, simple adjustment, enhanced waterproofing and a clean appearance. Binoculars have a wide, smooth focus knob that can easily focus. The rubber eyepiece can be adjusted up and down for more comfortable observation (with and without glasses). The diopter system can adjust the vision imbalance of both eyes and see a more perfect image.