Read the website, these are NOT night vision but are great binoculars if you have some light. Easy adjustment for each eye. They might be a bit heavy for the light weight but they come with a nice padded adjustable neck strap. The instructions say they come with batteries installed, but that's not the case. I was ready to call Revain when I found new batteries and a lens cleaning tissue tucked away in an inner pouch in my carry case. There were no instructions on how to attach the strap, so I've added a few photos of how I did it. The compass is accurate, but the distance and altitude scales require calculations to work properly. Overall a good buy.