Editorial Reviews:
Synopsis
Build your own moving, beeping vehicle with the National Geographic Electronic Robotic Beeper . Just follow the instructions to put the parts together and then turn it on. It'll roll along on its four wheels and make beeping sounds - as long as you've wired it up right! The Electronic Robotic Beeper comes in a heavy-duty storage case and is a great way to help kids learn about science. Needs two AA batteries (not included).
