Celestron SkyProdigy 70 28x165 Telescope Refractor telescope, Aperture 70 mm (2.76 in) , focal length 700 mm (27.56 in), focal ratio: 10, finder scope: Star Pointer mount: Motorized Altazimuth Sturdy Stainless Steel Tripod and Accessory Tray , CD-ROM The SkyX First Light Edition Astronomy Software Which Provides Education About the Sky Battery Pack Providing over 30 Hours of Power, Proven Computer Control Technology , Database Allows Telescope to Automatically Locate Over 4,000 Celestial Objects Proprietary Star Sense Technology Provides a Completely Automatic Alignment Process with No User Intervention Required Flash Upgradeable Hand Control Software for Downloading Product Updates Over the Internet, Fully Automatic Alignment Procedure