20-60x80 Bird Watching Telescope features an adjustable 20-60 zoom magnification and 80mm objective lens provides a high and clear view. The larger the effective diameter of the objective lens (80mm) is the better the focusing power and gives you a bright, high-resolution sharp image. The larger effective diameter of the objective lens is beneficial in terms of brightness. The difference in brightness caused by the effective diameter of the objective lens can be clearly seen at dusk or in dark forests. ✪ ✪ ✪ When the objective lens diameter is bigger, the field scope will be larger and heavier (45° Inclination Benefits) The 45° inclined shape allows you to easily observe birds in high places or observe celestial objects without having to take an excessive posture. Perfect for seated and sketching on a chair, or observing from a low angle. Unlike a straight eye, the eyepiece is used in a position where it peeps over from the top, so you don't have to adjust the tripod to fit your height if you are interactive observing (Compatible with Many Models, Easy to Use) The smartphone adapter is all model numbers, including iPhone SE, 14/14Puls/14P, 13/13/13p/13p max, 12/12 mini/12p/12p max, 11/11p/1p max, Xs/X, 8p/8p/7p/7, 6/6p, etc. Samsung Z Fold Series, Z Flip Series, S Series, Note Series, and More! All model numbers include Sony M Series, C Series, E Series, L Series, X Series, Z Series, and more. Compatible with Huawei, Xiaomi, Edge, Note, LG, HTC, Sony, etc. No special installation required, easy to use for kids and beginners. ✪ ✪ If you use your smartphone to shoot with a telephoto lens, you can zoom on your smartphone and take photos on the full screen. Enlarge the screen on your smartphone!!! You can adjust the magnification of the field scope and the magnification of your smartphone to each other for more beautiful photos or videos Waterproof, anti-fog and shockproof: The fieldscope eyepiece can be stretched to protect the eyepiece. In order to prevent moisture, dust and debris from entering the eyepiece, it has an inner layer of anti-dust cover and an O-ring sealed optics that are sealed with an inner layer that is suitable for various weather and situations Safe Support: Includes a field scope, smartphone adapter, tabletop tripod, lens cap, backpack, and Japanese instruction manual. We are committed to resolving your issues actively. We guarantee returns and refunds if there is a defective item. Please feel free to contact us from "Account Service" → "Order History" → "Seller List" → "Ask Questions" in your account service. We are responsible to address the problem