Explore our universe with this light and sound, talking Planetarium and virtual Solar System. Press pictured-buttons to hear over 1,000 fascinating facts plus challenging questions and answers. The 10" H. movable Solar System model with a light up Sun invites hands-on involvement. Interactive Planetarium is 17" W. x 1 ½" D. x 12" H. All sturdy plastic. Set uses 5 "AA' batteries (not incl.). Ages 5 yrs. +.