1. Quality Optics: Featuring BAK4 prism and lens, the light transmission reaches up to 99.5%, delivering more light to the view, reducing chromatic aberration and ghosting, and providing a clearer, brighter, and more colorful vision. 2. Compatible with Smartphones: The smartphone holder fits nearly all smartphones on the market. Easy to install and share, making it a companion for your next trip. 3. Professional End Monocular: This monocular offers 12x magnification and a 42mm objective lens. Ideal for birdwatching, concerts, football games, climbing, hiking, driving, wildlife, and landscape viewing. It provides higher resolution, greater light transmission, minimal distortion, and delivers bright, sharp images with truetolife colors. 4. Easy to Use: With this monocular telescope, you can quickly and effortlessly observe the scenery. Adjust the eyecup and focus wheel until you achieve a clear and bright image. The included smartphone mount and extendable, stable tripod make it easy to capture HD photos or videos.