Build a real working radio! All pieces are mounted on plastic modules and snap together easily. Kit includes all the hardware needed - just follow the instructions and the colored diagram. Once you have built the radio, you can take it apart and build up to 3 more devices: power amplifier, electric kazoo and trombone. Terrific for learning about electricity and how things work. Requires 3 AA batteries, not included. For ages 8 and up.