8 years & up. Kids can have fun while learning about electronics with this Snap Circuits® Jr. Select kit! They can build over 130 different projects, such as a glow-in-the-dark flying saucer, phototranistor, or motor, using the easy-to-follow manual. This kit contains music, alarm, and space war ICs to make sounds. Set contains over 30 parts. Requires 2 AA batteries (not included).