Monocular Telescope, 10x50 Waterproof Fogproof Military Marine Binoculars w/Internal Rangefinder & Compass for Navigation,Boating,Fishing,Water Sports for Adult Bird Watching Outdoor Travel

• ADAPT TO EXTREME ENVIRONMENT - Completly waterproof and float in water.Nitrogen-purged fog proofed Stable,comfortable to hold and highly . PERFECT FOR MARINE - Marine binoculars with 10x magnification and 50mm objective lens.22 mm eye relief,6.8mm exit pupil,and field of view is 396 feet at 1000 yards / 132 meters at 1000 meters. COMPASS & RANGEFINDER - Illuminated Compass built-in for direction location,with an internal rangefinder for determining distance and size of objects. BRIGHT AND CLEAR - prism system for a wide field of view.Premium BAK4 prism and Fully multi-coated optics produce bright,crisp images. Monocular Telescope high power Binoculars Phone Holder Tripod Waterproof Adults Outdoor Bird Watching Hiking Camping Travelling Reflector Astronomical Science Astronomy Beginners mobile phone Scopes Rangefinders Spotting Optics Camera Photo