10-30X50 Zoom Binoculars, HD Professional/Waterproof Fogproof Binoculars

[ Professional Powerful Binoculars ] Designed with 10-30X power magnification, 50mm large objective lens and 367ft/1000yds large field of view good for fast moving. [ High Quality Optics & Clear Night Vision ] This binocular uses the BAK4 FMC Lens,its FMC(fully multi-coated) film aspheric lens provides superior light transmission, contrast and quality. It can be used at night, but not in complete darkness. Suitable for concerts, opera, sightseeing and astronomical viewing. [ Non-Slip Grip & Durable ] Durable structure with odorless rubber armor for that provides protection as well as a secure and comfortable gripping surface. O-ring sealed optics with fog-proof coating prevents moisture, dust and debris from getting inside the binoculars. but also perfect for outdoor activities such as climbing, hiking, travelling, watching wildlife and scenery. [Smooth Focus] Easy-to-reach Fingertip Zoom Control Knob allows for quick and easy adjustment of the binoculars' magnification from 1