Ages 8+ There are 395 different projects to build, and all parts are compatible with our Power Blox line to add even more fun to your building experience. Some of the fun projects you will build include light activated sirens, alarms, birthday song, flying fan, and transistor amplifiers. Skills Imagination and creativity, teaching every child to investigate the world through interactive storytelling Creative reasoning Systematic building of objects Contents The kit includes various switches, lamp, heart and star LEDs, speaker, audio block, amplifier block, FM receiver block, motor, resistors, photoresistor, capacitors, transistor and more!