1. Contrast Resolution Monocular TelescopeFeaturing the latest optical technology, this HD monocular telescope is equipped with BAK4 prisms and fully multicoated lenses, ensuring exceptional light transmission and brightness with up to 99.5% light transmission. Its lowlight night vision capability allows for clear visibility even in dim conditions. 2. SmartphoneCompatible Monocular for AdultsAll additional accessories have been upgraded for enhanced durability. Includes a quickalignment smartphone holder, tripod, and wrist strap. Compatible with most smartphones on the market, easy to install. An additional tripod connection is also provided. 3. OneHanded Focus for Bird Watching, Waterproof AntiFogDesigned for quick and precise onehanded focusing, our monocular features a textured rubber grip for comfortable handling and a nonslip design to prevent drops. IPX7 waterproof technology, nitrogenfilled interior, antifog coating, and Oring sealed optics keep moisture and dirt out, ensuring clear visibility at all times. 4. Versatile Observation for Various ScenesIdeal for sporting events, concerts, bird watching, camping, fishing, and travel. Suitable for both adults and children. Whether you're a passionate bird watcher or a sports enthusiast, this monocular is the companion. 5. UltraClear ImagingDelivers sharp, distortion images without black bars for an ultraclear viewing experience. The 50mm objective lens provides closeup views with enhanced clarity and brightness.