Explore sound with this great kit from Snap Circuits
-Features: Keyboard with optical Theremin, Echo effects, Voice changer; Record voice or music and play it back at different speeds. -Sound energy demonstration.
-Color changing light.
-Connect to your smart phone and analyze sounds with downloadable apps.
-4 AA batteries required.
RATINGS: Lots of people rate our toys. Look for the to see the toy's rating.
REVIEWS: We just started adding reviews. Not all toys have reviews, but all have ratings. If you want to review a toy, be our guest!