Crystal Radio building kit!

Build a real working crystal radio that doesn't even need batteries! You can pick up radio stations and experiment with radio waves, and there's no soldering needed, it's a very easy but educational science toy. The 16 page instruction booklet will guide you through cool experiments by trying different antennas and grounds.

Science Kit includes: Tuning coil, crystal diode, earphone, and all the parts you need for your crystal radio, plus fun educational booklet. No batteries needed.