Monocular built-in compass rangefinder, with standard military compass, reticle plate, distance and azimuth measurement.BAK4 prism: large field-side and completely multi-coated lens coating; 23 mm large eyepiece with BAK4 prism, large field of view ensure that you feel more comfortable when looking at the completely FMC multi-coated 42 mm large lens, which makes the image more stable and brighter.Multiple 8x magnification: With this monocular you can not only see objects 8 times closer. With a 42mm lens, you can even calculate the distance between you and the target and the size of your target.Compact one-hand focus telescope; Ergonomic design helps you focus quickly and precisely on your goal with one hand. The monocular telescope weighs only 330 g and is 145 mm high. It is compact and easy to use with one hand and convenient to carry.Waterproof and anti-fog, prevents moisture dust and dirt from getting into the monocular to prevent internal fogging, whatever the weather and any environment.