The Bushnell Fusion X 10x42 Rangefinding Binoculars are a two-in-one solution for observing and ranging. Features a binocular that provides great viewing from before sunrise to after sunset; ranging accuracy; High-Definition Optical System provides optimum viewing clarity; detailed readings for distances up to a full mile; bow and rifle modes; scan, near/far target, archery and rifle ballistic modes; activsyn reticle- auto adjusting black to red reticle; IPX7 waterproofing and Exo-Barrier lens coatings.