?High-Definition Binoculars?- Professional birding binoculars with multilayer coated optics and Bak-4 glass prisms provide excellent color fidelity, edge-to-edge clarity and light transmittance. Every adventure you have will be a wonderful visual feast. ?Large Field of View Binoculars?- The HUGERSTAR 20x50 adult binoculars have a field of view of 100m/1000m, which allows them to show a larger part of the scenery under the excellent magnification of 20x, suitable for hunting, watching games, traveling,etc. ?Robust and Compact Body?- The powerful binoculars with roof prism design have higher durability and more compact size, which can resist stronger impact. ?Easy to Focus and Adjust?- The smooth center focus wheel enables fine focus control, and its diopter system (on the right eyepiece) can adjust the vision difference of the user?s eyes. Adjustable eye mask can be rotated up and down, suitable for people who wear glasses or not.