Bushnell Marine 7 x 50mm Porro Prism Waterproof/Fogproof Binoculars with Digital Compass and Tilt, Blue Quality optics with stunning HD clarity 100% quality materials used and tested extensively Beautiful design and durability built to last Premium BaK-4 prism glass and fully multi-coated optics for bright, clear, crisp viewing Built-in, 3-axis digital compass for true heading; integrated TILT feature, with Liquid Crystal Display read-out for optimum stabilization Buoyant, waterproof and salt water corrosion resistant Rugged non-slip rubber armor absorbs shock and provides a firm grip when wet Hermetically sealed, fold-down eyecups; 100% UV protection