An ergonomic, light and stylish pair of binoculars that comes with a compass and rangefinder.A compact, light and convenient pair of waterproof binoculars, the Coastal 400C binoculars are an excellent choice for boating or other rugged outdoor activities. The Coastal 400C's internal rangefinder scale and illuminated compass help users determine the distance, size and direction of objects. Nitrogen-charged interior eliminates fogging on internal lens surface. BAK-4 prisms for bright, sharp images. Rubber-coated body for shock resistance. These binoculars also float when used with the included Flotation Strap.Key FeaturesInternal center focusing: Simple adjustment, enhanced waterproofing and a clean appearanceNitrogen charged interior: Eliminates fogging on internal lens surfaces even in severe conditionsBAK-4 Porro prism: For bright, sharp images across the field of viewRubber armored body delivers great shock resistance and a secure, slip-free grip7 x 50 binoculars: Best size for all-around use onboard the moving deck of a boatCompass and rangefinder reticle: Valuable tools for checking range and bearing of navigational markers and other boatsOwners Manual