Super Telephoto Zoom Monocular TelescopeDo you need a monocular telescope lens that provide clear and bright images, and a wide field of view ? Our monocular telescope upgraded 10X to 30X magnification, provide more wider, clearer and brighter scene in your eyes. This compact Super telephoto zoom monocular telescope is convenient to use by single hand, You can adjust the eye cup and focus according to your need, until the view become clear. The monocular telescope is sealed with an O ring