M8-10X50 Monocular Telescope,Portable size, non-slip design.Professional hand-held telescope, built-in coordinates, accurate ranging 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. 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. IPX7 Nitrogen-filled waterproof, 10X50 Monocular Provides Waterproof Fogproof Protection in any Weather and any Environment,Rubber armored Body strengthen its Idea. Wide range of applications, the best tool for the outdoors Perfect for Hiking Hunting Climbing Birdwatching Ball games Watching Wildlife and Scenery.