The Starscope Monocular Telescope 30671 offers a 10x fixed zoom with a 50mm objective lens diameter. It is lightweight, making it convenient for general-purpose use. The monocular features multi-coated lenses for improved clarity and optical design based on magnifying lens technology. This new-in-box product is suitable for various activities like bird watching, hunting, or outdoor exploration. *NIB, but opened to photograph.