1.High Contrast and Resolution Images: The optics technology, the monocular telescope equipped with BAK-4 prism and fully muti-coated lens, 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 long-lasting 2.HD Dual Focus Scope: Get a high-quality image of 25X closer, also a 30mm objective lens provides you with a wider-field of view. Camping, hiking, bird-watching, or stage-watching, whenever you need a better vision for afar view, just take it and go enjoy 3. Monocular: This 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) 4.Easy To Carry: The portable and lightweight design can effectively reduce the travel burden. You can put the monocular telescope in your backpack or hang it on your hand or waist