1. [Professional Powerful Compact 12x42 Binoculars for Adults] With 12x high power magnification and 42mm wide angle lens, it provides first-class clarity and brightness; equipped with 21mm green film eyepiece and 330ft/1000yd wide field of view, it is designed for outdoor activities such as mountaineering, hiking, driving, watching wildlife and scenery. This bird watching binoculars can also be used to watch large stage plays, concerts, football games, etc. 2. [Dual focus capability and precise adjustment] Kylietech compact hunting binoculars are user-friendly, equipped with focusing knob and diopter ring, improved eyecup design and tethered objective lens cover can adapt to a wide range of users, rotating the eyecup up and down can be quickly adjusted, and you can watch comfortably with or without glasses. 3.[Advanced BAK4 Prism and Multi-coated Optics]This binoculars is equipped with BAK-4 prism and 12x magnification, fully coated lenses and objective lenses with optical FMC multi-layer broadband green film, ensuring high-definition field of view, brighter field of view and clear images. It can be used at night (but not in complete darkness) and provides you with an amazing viewing experience. 4.[Equipped with smartphone adapter and adjustable eyecup]This low-light binoculars can be used with a tripod. The rubber-coated eyepiece can be rotated up and down to accommodate different people, thereby adjusting the most suitable distance between the eyes and the optical lens. It also comes with a smartphone adapter, compatible with iPhone 12, 11, X, 8plus, 8, 7plus, 7, 6, 6s, 6plus, 5, 5s, Samsung GALAXY S6, S6 Edge, S5, Note, LG, HTV, Sony, etc.