ED Glass Binoculars; Extra-low dispersion (ED) glass reduce chromatic aberration; delivers amazing color and contrast even in low-light conditions10 x42 Binoculars; 10x magnification and 42mm objective lens let you closer to distance targets; 326ft/1000yds large field of view; Ideal for bird watching nature observation hiking huntIncredible Details; Phase coating and high reflective dielectric coating Bak4 prism ensures high resolution color reproduction; fully multilayer coated on lens and prism surface for enhance light transmissionMagnesium Alloy Body; Lightweight durable frame that will last a lifetime; Waterproof and nitrogen filled features for reliable performance in bad weatherTwist-up Eyecup; Soft rubber eyecups with 3 steps to facilitate easy positioning of eyes at the correct place; smooth center focus wheel and right eye diopter allows you get precise vision