16x52 HD Dual High Powered Focus Optics Zoom Monocular Telescopes Day & Night Vision Waterproof for Hunting Camping Hiking 66m/ 8000m The mirror is full of the high-purity nitrogen, waterproof and antifogging. You can use it in raining day and humid environment, and have no need to worry about this item Low-light-level night vision built-in design, helping you see things in low light,it doesn't help you see things in the dark Upgraded ultra-through multi- layer broadband green film, light transmission rate of 95% or more, make you see the scene more realistic The monocular offers an 16x magnification and a 52mm objective diameter The viewing filed: 66M/8000M Suitable for Golf, Scope, Camping, Hiking, Fishing, Bird watching, Concerts, etc