Build your own theremin kit-create sounds while you learn science and engineering! With this theremoin kit, you can create music and sound by waving your hands around electric fields. Discover the physics of electrical capacitance and practice on working with real electronic parts. Easy to follow colorful 22 page instruction booklet walks you through every step with breaks to check your work and learn how the circuit works. No tools needed- everything is in the box. Start creating electronics without having to learn soldering-simply place parts in the breadboard to connect. yes, even batteries are included, too. Ages 10 & up. 30 parts.