BARSKA Naturescape Compact Mini Waterproof Binocular Compact binoculars with 10x magnification and 26mm objective lens BaK-4 prisms and fully multicoated optics produce bright, crisp images Large center focus knob and separate diopter adjustment Sturdy rubber armoring is waterproof and fogproof; twist-up locking eyepieces Includes deluxe carrying case; weighs 7 ounces; limited lifetime warranty