The professional ED monoculars feature advanced optical glass materials with a large 50mm objective lens and 12x magnification. The Wide field of view (360ft/1000yards), letting you have the best view in your outdoor adventures. It's a great monocular telescope for adults and kids, perfect for bird watching, hunting, hiking, camping, traveling, wildlife, scenery, etc. This is a great survival, hunting, hiking gear, and camping supplies. The monocular telescope is equipped with BAK-4 prism and fully multi-coated lens, guaranteeing superior light transmission and brightness. The light transmission reaches up to 99.5% visibility, ensures imaging verisimilar. The built-in low-light-level night vision helps you see things in low light. An adjustable eyecup also allows you to twist up and down easily and rapidly for optimal viewing even while wearing glasses. Single handheld design and durable environmentally friendly rubber shell is comfortable to use and prevents it from slipping from your hands. Nitrogen-filled waterproof, anti-fogging coating and O-ring optical protection against moisture, dust, and debris help keep the lens clean. Make sure that your fixed-point telescope can still provide you with the best performance under all temperature and weather conditions. Easy to alignment, compatible with mobile phone case. Compatible with iPhone 8/8 Plus, 7/7 Plus, 6/6s Plus, Samsung Galaxy S9/S9 Edge, S8/S8 Edge, S7/S7 Edge, LG, HTC Sony, and almost all other smartphones on the market. An ideal monocular telescope for adults and kids, best gift for Birthdays, Valentine's Day, Father's Day, Children's Day, etc.