[Low-light vision system with high-quality optical components] The design of aspherical lens and multilayer coating can ensure excellent light transmission, and can greatly improve the brightness, contrast and quality of the image. It can be used at night, but not in complete darkness. Suitable for concerts, operas, sightseeing and astronomical viewing.[Professional and powerful binoculars] Designed with 10x magnification, 50mm large objective lens and 167ft/1000yds large field of view, very suitable for fast-moving objects, ideal for bird watching, , driving, sports events select.[Easy to focus] Correcting optical coating is beneficial to color fidelity and minimize distortion. The diopter system can adjust the visual imbalance of both eyes. Smooth and wide central focus knob makes it easy to operate and easy to focus [Sturdy, firm, non-slip handle] Durable structure, odorless rubber armor, shock-proof and non-slip handle, not only the appearance is more wear-resistant and moisture-proof, but also very suitable for outdoor sports climbing, hiking, traveling, and watching wild animals Activities such as plants and scenery. BAK4 prism, high light transmittance, brighter and more transparent imaging without dark edges, multi-layer ultra-high transmittance coating, accurate design of professional multi-layer coating can improve the performance of the telescope optical system can help see brighter colors , More details