The Invention Hunters travel the globe in their flying museum collecting the world's greatest inventions! This time, they've landed at a music store, and these silly scientists think they've collected incredible specimens of trampolines, birdhouses, eyeballs, and even a unicorn horn. But what they really discover -- with a kid as their guide -- is how musical instruments, microphones, and records produce sound.

Using simple explanations and diagrams, and a heaping helping of humor, the Invention Hunters make the perfect companions for curious kids who are ready to learn about science, physics, engineering, history, and more.