Packed into this Copperhead® HD 10x42 binocular is the power to surprise you, featuring an HD optical system for outstanding color fidelity, edge-to-edge sharpness, and light transmission. The Copperhead®also offers adjustable eyecups and a diopter so you can get a custom fit, and waterproof, fogproof, shockproof performance keeps you in the game no matter the weather or terrain. As a backup, or as your primary hunting or observation optic, they aren't just good for the money: They're good for all your outdoor adventures.