Classic roof-prism design combines with 10x magnification for optimal viewing experience. PermaFocus Technology - Keeps distant objects permanently in focus, eliminating the need for constant adjustment. Nitrogen Purged Fog-Proofing - Nitrogen inside the scope ensures interior optical surfaces won't fog due to humidity or rapid temperature change. Multi Coated Optics - Multiple layers of coatings on all lens surfaces increase light transmission and image brightness. What's in the box: 10x40mm Spectator Sport binos; padded neckstrap; soft case that can be attached to a belt; red, white, blue, & black decorative inserts; instruction sheet. Bushnell Spectator Sport 10x40mm Black Binoculars BS11040