Create echo effects, build a voice changer that records sound and plays it back at different speeds, you can even connect your projects to your smart phone and analyze sounds with apps. Kids will learn about electronics and sounds as they enjoy the satisfaction of constructing their own projects. Over 40 parts are included for use with 93 projects. The booklet even includes a section chock-full of scientific information about sound and how it works. An excellent holiday present for industrious and mechanically-minded kids. Build over 185 exciting projects. Over 40 colorful snap circuit blocks and pieces Easy to assemble Informative and lucid instruction booklet Great introduction to sound and engineering.

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