Clear low-light vision, binoculars provide a clear view in low light conditions, but not in the absence of complete darkness. . . Suitable for adults and children, for hunting, mountaineering, adventure, watching, sailing, bird watching, concerts, and other outdoor sports. . FMC broadband coating technology, it is covered with a lightweight telescope cruise BAK4 prism texture. FMC objective optical multilayer broadband green film, and a blue ocular optical coating FMC ... Top BAK4 optical prisms and multi-coated, 50 mm multi-coated lenses provide brightness and color fidelity you require. There are also 20 times magnification, the magnification is desirable to capture the most clear, bright, stable image bird watching. . Suitable for outdoor activities such as mountaineering, hiking, driving, wildlife viewing and scenic appreciation.