Big Red Rooster BRRC100AC Rocket Ship Projection Alarm Clock, Operates On 3 C Batteries (Not Included) or an Ac Adaptor (Included) Rocket alarm clock projects the time and 4 different NASA images on your ceiling or wall There are 4 NASA space images to choose from: man on the Moon, earth, Moon, space shuttle The top of the clock rotates and pivots allowing the time and image to project anywhere in the room. Images project up to 30 inches in diameter Optional timer for the projection time and image can be set for 10 or 30 minutes Powered by 3 C batteries (not Included) or Included AC adaptor