PREMIUM BAK4 PRISM: The use of BAK4 prism can eliminate the phase shift phenomenon. The lens has a high light transmittance and clear imaging. HIGH POWER BINOCULARS: Binoculars can deliver best-in-class clarity and brightness. Assures your binoculars will still give you maximum performance in all temperatures and weather conditions. ENVIRONMENTAL PROTECTION MOISTURE-PROOF RUBBER FILM: The Binoculars made of rubber armor coating and leather, The lens has the feature with an anti-fog coating to prevent moisture, dust, and debris from entering the binoculars, ensuring that it is waterproof, shockproof, and . DUAL FOCUS CAPABILITY & PRECISE ADJUSTMENT: The binocular width can change to suit for. Easily use the precise central adjustment wheel adjusting ring to focus on your targets. Suitable for outdoor activities such as mountaineering, hiking, driving, wildlife viewing and scenic appreciation.