Celestron StarSense Hand Control USB Brand New Includes Two Year Warranty The Celestron StarSense Hand Control USB is compatible with the StarSense AutoAlign accessory for use with Celestron computerized telescopes. It has Dual line, 16-Character LCD screen with adjustable backlighting. StarSense AutoAlign?s hand control gives you instant access to huge database of over 40,000 objects. This hand control is Flash upgradeable via the Internet. You can even connect to your PC directly with a mini-USB cable for software updates or optional telescope control with third party software this is flash upgradeable via the Internet. StarSense Hand Control USB Features Product # 93999 Hand Controller Dual line 16-Character LCD Screen Adjustable Backlighting Flash Upgradeable Via Internet Accesses 40,000 Object Database