Designed with 10x powerful magnification, 42mm large objective lenses and 341ft/1000yds large field of view are ideal for bird watching, hunting, hiking, sports events, etc. These binoculars allow you to get a view of distant objects and even captures more details of fast moving subject. Anti-reflection fully multi coated lens reduce glare while increasing light transmission, image brightness, color rendition and contrast. Wide 65° apparent angle of view helps to mitigate the appearance of visible hand-shake. Large textured center focusing wheel is easy to manipulate even when wearing gloves. Rubber covered eyecups can be twisted up and down for different people to adjust the most suitable distance between your eyes and the optical lens. The eyeglass wearers can adjust the eye relief through rising eye cups and feel more comfortable. Traditional porro prism design with protective blue rubber armoring provides slip-resistant grip in cold or wet conditions and textured palm-pads improve grip security allows for accurate focusing. Featuring shockproof, Nitrogen filled O-ring sealed to be waterproof and resistant to internal fogging when moving between extreme temperature changes. 16mm eye relief, 4.2mm exit pupil. Includes case, strap, eyepiece, and objective lens covers. Weighs only 32 ounces.