Lego Smart Play is the biggest update to the ecosystem in 47 years. Using a so-called Smart Brick, regular Lego constructions gain responsive audio effects, bringing them to life in your hands.
The Smart Brick is the same size as a regular 4x2 Lego piece and is universal, meaning you could put the same brick in any number of Lego sets and have a different result. Inside it is a speaker, accelerometers, light and sound sensors, an onboard synthesiser and a custom mixed-signal ASIC chip to run it all.
