Bushnell combines advanced optics and superb ranging accuracy to create the Fusion X 10x42mm Rangefinding Binoculars! These field glasses come equipped with the HDOS (High Definition Optical System) which provides premium viewing clarity even in poor lighting conditions such as early mornings or late evenings. The Fusion X is also outfitted with an integrated rangefinder which delivers precise ranging measurements up to a mile away. The ranging abilities are enhanced even further thanks the Fusion X’s ActivSync display technology, which seamlessly morphs from black readouts against bright backgrounds to red readouts against dark backgrounds. This feature is particularly useful on bright cloudless days or when ranging game in deep cover. Features of the Fusion X 10x42mm Rangefinding Binoculars: ActivSync display technologyOne-mile ranging capabilitiesHigh-Definition Optical System Bushnell Fusion X 10x42mm Black ActiveSync Display WP HDO Laser Rangefinding Binoculars FX1042AD