Apexel High Magnification Telescope 10x Nitrogen-filled Anti-fog and Waterproof Mobile Phone Monocular Long Distance Bak4 Prism Lens Features: 1.10X50 High Power Magnification :Have the best view in your outdoor adventures;To see 10X closer with a clear and bright image with the generous light-gathering 50mm objective wide lens. 2.Superior Optics:BaK-4 Prism inside and fully multi-coated lens Coating - strengthen the key function of a monocular, superior light transmission and brightness, make your view brighter, clearer and delivers crisp images. 3.IPX7 Nitrogen-filled waterproof, higher quality:10X50 Monocular Provides Waterproof Fogproof Protection in any Weather and any Environment,Rubber armored Body strengthen its durability Idea. 4.Wide range of applications, the best tool for the outdoors:Perfect for Hiking Hunting Climbing Birdwatching Ball games Watching Wildlife and Scenery. Specifications Name:APEXEL M8-10X50 Monocular Model:APL-M8-10X50 Magnification:10X Eyepiece diameter :23.5mm Objective Diameter:50mm Field of view :5.84 or 102M/1000M Exit pupil distance:17mm Exit pupil diameter:4.88mm Prism:BAK4 Lens coating:FMC Broadband Film Prism coating:Phase film+ high reflective dielectric film Material:Aluminum alloy + environmentally friendly rubber Waterproof level:IPX7 nitrogen filling Weight:448g Size:158x80x64mm Packaging: 1* Packing box 1* Nylon Soft Bag 1* 10X50 monocular 1* Manual 1* Cleaning cloth 1* Eyepiece cover 1* Objective lens cover 1* Wrist strap M8-10X50 Monocular Telescope Professional hand-held telescope, built-in coordinates, accurate ranging Portable size, non-slip design 50mm large objective lens, clearer vision IPX7 nitrogen-filled waterproof, suitable for any environment High quality BaK-4 prism and FMC optical lens Observation effect display: Product information and details display: