1.HD Focus Scope: Our monoculars feature long-lasting full multi-layer coated lenses, it's designed with 10x High magnification and 25mm wide-angled big objective lens, large eyepieces you a wide field of view when viewing the world, gives you the highest enjoyment 2.High Contrast and Resolution Images: long-lasting precision design featuring all glass high end optics, (BAK4 Prism Multi-layer Film), this high monocular telescope allows more light transmission and brightness and the light transmittance forming clear and colorful image 3.Comfortable and Ergonomic Design: Ergonomic design helps you focus on your target quickly and accurately with one hand. And the long-lasting rubber armor with grain makes it comfortable for use, non-slip grip, and long-lasting external protection from your hand 4. 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)