Vanguard Orros Compact Waterproof Binoculars, Black Bak4 prisms and multi-coated lenses provide crisp, clear viewing Ultra lightweight and compact design Unique offset focus wheel for convenient one-handed adjustment 100% waterproof and fogproof Non-slip rubber armor Premium Lifetime Warranty Magnification: 10x, Objective Lens Diameter: 25mm, Field of view: 330 ft/1000 yards, View angle: 6.3 degrees, Near focus: 8.2 feet, Eye relief: 10 mm, Weight: 9.9 ounces