Portable Zoom Monocular - Monocular has a powerful zoom magnification range that is adjustable 10 to 30 times if you need to see a larger view and need to handle it stably, zoom in to a high magnification if you are a little further away have to see and also want a certain picture.Suitable for any occasion: The variable 10-30x magnification and dynamic lens focusing system makes it easy to zoom in on the target, perfect for hunting, camping, target shooting, archery, bird watching, wildlife viewing, landscape and even astronomy.Advanced Configuration - With the ED-Falss (extra low dispersion glass), BAK-4 crystal prism and FMC (full multilayer) 50mm objective lens, monocular offers less chromatic aberration, brighter and clearer image. The transfer of highlights achieves up to 99.8% light reflections and enables a clear picture like the Porro system.