Crystal Radio

Radios are all around us - playing in cars, boom boxes, space shuttles, etc. - and radio waves are all around us - literally all around us, in the very air we breathe - and now you can harness the power of both, and have a great time doing it, with the Crystal Radio! It actually operates without batteries, and comes with a book that gives you the inside scoop about radios in a fun and informative way. Simple to build, simple to learn, and very entertaining, the Crystal Radio teaches important lessons about an important part of our world. Includes tuning coil, antennas, and earphone. Batteries are not required.