The MAOZUA 12X Zoom Monocular Telescope is a small tube but large image. It is more convenient that binoculars fitting easily into a jacket pocket and easily extracted and focused on any object of interest. The telescope is both waterproof and anti-fogging. You don’t have to worry a bit about using it in light rainfall or the telescope fogging up in the damp and cold either.The lenses are protected with covers for their security. They are easy to focus and having a 40mm object lens they grab in a lot of light which helps make any object viewed crisp and clear.The focus dial on top is easily adjusted with the one hand, very smooth operation. Has a wrist strap to save accidents happening, comes with a cleaning cloth and a carry case too. The telescope is adjustable focus which makes it very easy to get it perfectly sighted for whatever you wish to observe.This one is easy to see through without having to squint or continually keep moving the eyepiece and the resultant image even when zoomed is fairly bright and clear.