Use waterproof design: 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 itemEasy focusing Suitable for Golf， Scope， Camping， Hiking， Fishing， Bird watching， Concerts， etc.Dual Focus design: can look much longer distance and more distinctWith low-light-level night vision built-in design， it has clear vision when there is reflect light at nightThe monocular offers an 16x magnification and a 52mm objective diameter The viewing filed: 66M/8000MProduct DescriptionBrand new and high quality monocular telescope. This monocular offers an 16x magnification and a 52mm objective diameter. The fully coated optics， meanwhile， guarantee superior light transmission and brightness， helping you see just about any target， whether you're searching for birds or trying to get a better view of the stage. Single hand operation. Powerful， ultra-compact and ultra-lightweight. Day night vision.It will help you see things in low light， it doesn't help you see things in the dark. (Can't be used at night!) Suitable for enjoy beauptiful nature， view birds， watch sorts， general purpose. Specifications: Focus system: Center Prism system: Roof Magnification: 16x Objective lens diameter: 52mm Eye Lens Diameter: 16mm Exit pupil: 5.2mm Field of view: 66'@8000 yds Size: About 15.1cmx5.2cm/5.9"x2.0"(LxD) Color: Black Please Note: Do not look directly at the sun through a telescope， otherwise it will hurt your eyes. Package included: 1 x Monocular 1 x Carrying Bag 1 x Neckstrap 1 x Lens Cloth 1 x User Manual