The Bushnell Goto 100mm Maksutov-Cassegrain Compact w/RVO offers amateur astronomers state-of-the-art computer-driven location and tracking capability with simple push-button control. With a built-in data base of 20000 celestial objects you simply call up your target on the handheld control module enter a simple "Go To" command and the NorthStar computer does the rest. Once locked on tracking the object for prolonged viewing is automatic. Our innovative RVO (Real Voice Output) feature provides a fun interactive way to explore the night sky. The remote handheld control module features red backlit push buttons and a red illuminated LCD read-out for easy viewing without impairing your night vision. The telescopes also feature our new 1x wide-angle red dot finderscope. Additional features include a quick-release tripod and accessory tray for fast easy assembly.Features4mm and 20mm eyepieces Erect image diagonal mirror for land viewing"Go To" computerized tracking technologyRed Dot LED finderscopeRemote handheld control moduleCamera adaptableQuick release tripodKinematic mountAccessory tray