waterproof

I've only had this thing for 2 weeks but am quite impressed with it. the constuction, size and performace are what you would hope for at this price level.

I'd recommend it to boat owners.

This thing delivers exactly what it promises: it enables one to see in darkness! Within a city you will hardly find a spot dark enough to fully appreciate the scope, but in the country side at night this thing is incredible. The built-in infrared light source allows one to see in pitch black. The image is monochrome (greenish) and is distorted towards the edges, sort of like if you are looking through a bubble. Even so, the effective viewing angle is wide enough for comfortable viewing. Also, I was quite impressed with quality of the optics: if you adjust the eye-piece to your eye, the focus ring allows to get a very sharp image from just a few feet to infinity! I found a minor defect, however: The battery lid appeared to not provide a good contact to the battery, so I had to tweak the lid slightly for the power to come on. The construction of the body and the objective's assembly, however, seemed smooth and very sturdy.