Weak Light Vision with Quality Optics: Design of Aspherical lenses and multi-layer coating guarantee excellent light transmission and well improve image brightness, contrast and quality. It can be used at night, but not in complete darkness. Suitable for concerts, opera, sightseeing and astronomical viewingEasy To Focus: The center focus knob is upgraded with big wheel guarantee fast and high precision focusing. While allowing eyepieces to calibrate separately for a clearer view. So don't view the sun with this binocular or even with the naked eye, it'll cause permanent eye damageProfessional Powerful Binoculars: Designed with 12X power magnification, 42mm large objective lens good for fast moving subject, are ideal for bird watching, driving, sports eventsWaterproof Binoculars: 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)Durable, Solid and Anti-slip Grip: Durable structure with odorless rubber armor for shock-resistance and Anti-slip grip, making it not only in decent appearance of more wear-resistant and moisture-proof, but also perfect for daily use and most outdoor environment like moon viewing, bird watching, hiking, camping, climbing, sailing, travelling, concerts, sports and more