Tune in to your inner engineer with this rockin'' build! No jammed signals here! Engineer a real, working FM radio by connecting electronic components, including a magnetic speaker, to a receiver module with a working antenna and buttons for tuning and volume. Then put your finished radio and music knowledge to the test with any of the games in the book! Aspiring audio heads will learn about the electromagnetic spectrum, wireless communications, and how radio waves become music to their ears. Comes With: 32-page book, chipboard parts, battery holder, on/off switch, stereo FM radio receiver module PCB, antenna, speaker.