Review on Binoteck 12x42 Bird-Watching Binoculars for Adults - Compact HD Vision Binoculars for Travel, Hunting, Concerts, Opera, Sports - BAK4 Prism, FMC Lens - Includes Phone Mount, Strap, Carrying Bag by Libby Walker

I am impressed with the build quality and portability of these binoculars. They are much more comfortable to use than the 10x50 and feel more ergonomic in my hands. All accessories are included, as is a lifetime replacement warranty, which can be completed quickly and easily online. The included phone adapter works. The optics are clear and easy to adjust. I mainly use them for stargazing with a wide field of view between telescopic observations. As long as they seem valuable to the astronomer. Of course, even daytime views are clear and bright. IMHO the best feature is the lockable front and rear lens caps. Take them off to see. Turn them over to remove them. It's too easy. And you don't have to worry about losing them.