10X42 High Power Magnification: As the strongest monoculars, it offers up to 10x magnification in a 42mm lens. This magnification gives you a clear view at up to 1000yds away which can provide you amazing viewing experience when travelling, bird watching;High Contrast and Resolution Images: The optics technology, the HD monocular telescope equipped with BAK-4 prism and fully muti-coated lens, guarantee superior light transmission and brightness and the light transmittance reaches up to 99.5%. Our monocular has low-light-level , it could help you see things in low light (can't see anything in complete darkness), provide you a amazing viewing experience;Waterproof Monocular: This HD waterproof, fog-proof, dust-proof, shockproof monocular, built in lens dust cover and o-ring sealed optics could prevent lens from dust/moisture/debris, ensures the living waterproof function, fit for the most weather and environment(note: it can not be used in a heavy rain for a long time or soaked in the water);Comfortable and Ergonomic Design: Ergonomic design helps you focus on your target quickly and accurately with one hand. And the rubber armor with grain makes it comfortable for use, non-slip grip, and external protection from your hand