Contrast and Resolution Images precision design with all glass end optics, featuring a BAK4 prism and a multilayer green film. This monocular telescope improves light transmission and brightness, producing clear, colorful images with good contrast. Widely Compatible with Smartphone The smartphone holder fits almost all smartphones on the market. Easy installation and simple sharing, making it a convenient companion for trips and outdoor activities. 840X40 Magnification Offers 840x magnification with a 40 mm objective lens. This range provides a clear view up to 1000 yards, enabling detailed viewing during travel, bird watching, and outdoor observation. Easy to Use Single handed operation for quick setup. Adjust the eye cup and focus wheel until the image is clear and bright. The builtin smartphone holder and extendable stable tripod help you capture HD images or videos with ease. Use scenarios Bird watching and nature observation on hikes or in parks where distant subjects require clear optics. Travel and sightseeing to capture distant scenery, landscapes, or architectural details from viewpoints. Outdoor events such as sports or concerts to observe distant action and capture photos or videos for sharing.