SmartLab DJ Rock Dock Kit: * Portable speaker dock kids can build themselves * Build a speaker dock for iPod, iPhone or MP3 player * Twist wires together to build the speakers * Included book: * Teaches kids the difference between analog and digital * Explains electricity * Provides detailed instructions for building their own speaker system with the included parts * Components: * Pre-printed paper housing * On/off switch * Audio plug * 2 speakers * Circuit board * LED * No tools required * Requires one 9V battery (not included)