This ZOOM telescope is equipped with the BAK4 prism and Fully Muti-Coated lens, which could make ZOOM telescope's light transmittance up to 99.8% and provide a clear and bright visual experience. Monocular designed for outdoor enthusiasts. It is suitable for all kinds of outdoor sports: animal observation, mountaineering, camping, tourism, hiking, water sports, ball games, scenery viewing, driving, concerts, monitoring, It is equipped with a smartphone holder and tripod for quick positioning. It can be matched with various models of mobile phones. Compact and lightweight ZOOM telescope brings you distant landscapes by adjusting the blindfold and focusing wheel. Perfect gift and gadget for birding,hunting,hiking,camping,traveling,sightseeing lovers.