A. This is a high-magnification monocular telescope with a magnification of 10x and a specification of 10X40. It has an adjustable focal length function, which can flexibly adjust the focal length according to actual observation needs and clearly capture every detail of the target object. B. It has a wide range of uses. Whether it is for bird watching outdoors to track the lively movements of birds or for other outdoor observation activities, it can provide a clear field of view. Even in low-light environments, it can achieve relatively clear observation results and has a certain ability for low-light night vision, allowing it to be used normally in low-light scenarios. C. In addition, it supports mobile phone photography. By matching different accessories, such as a universal mobile phone clip, a folding mobile phone clip, and a metal telescopic stand, you can easily use your mobile phone to record the wonderful moments of observation and preserve beautiful pictures. D. Its design focuses on practicality and functionality, providing a convenient observation experience for outdoor enthusiasts.