Powerful Monocular Telescope, Piper 12x55 High Definition Monocular for Adult with BAK4 Prism & FMC Lens, Lightweight Monocular Handy with Phone Adapter, Suitable for Bird Watching Camping TravelingFeatures and Product details:\n--12\u00D7 Magnification & 55mm Objective Lens:Gosky monocular equipped with 12\u00D755 high power magnification, the best magnification for distance watching.It provides large field of view (352ft/1,000Yds), Provides a large field of view, providing you with the perfect view.\n--Premium FMC & BAK-4 Prism: The HD monocular telescope provide 20mm BAK-4 optics prism and FMC (Fully Multi-Coating)lens, which could increase monocular's light transmittance up to 99.6% and reduce the reflection of light by the eye lens that provide clear and sharpe pictures.\n--Lightweight Monocular & IPX7 Waterproof: This Lightweight monocular with comfortable and portable hand strap,that it could prevents the monocular scope from slipping out your hand. IPX7 Nitrog7