1.[8×40 HD Magnification]8 times magnification, 40 mm object diameter monocular. Using optical technology, this monocular uses a fully coated lens to ensure excellent light transmittance and image brightness, so that your field of vision is brighter, the image is clearer and sharp, and there are no black stripes. 2.[High Contrast and Resolution Images]The zoom telescope is equipped with BAK-4 prism and fully multi-coated lens, guaranteeing superior light transmission and brightness. The light transmission reaches up to 99.5% visibility. An adjustable eye cup also allows you to twist up and down easily and rapidly for optimal viewing even while wearing glasses. 3.[Compact Monocular]Compact and light monocular brings you the distant scenery by adjusting the eye cup and focusing wheel. This single eyepiece is small and light. It can be used with one hand and is easy to carry out. 4.[Compatible With Any Smartphone]It is equipped with a quick positioning smartphone bracket and a tripod. It can be matched with various models of mobile phones. It is easy to install and can be used to provide high-definition images to share with friends.