The Tetrafol is a hand-held tangible electronic sound toy. Circuits enclosed by a wooden tetrahedron detect orientation and motion-gestures to modify the playback of a collection of Fol Chen's micro-compositions, allowing the user to explore sound through physical manipulation.
The battery-powered device has its own internal speaker but can additionally be hooked up to a headphone or amplifier.
The circuit and firmware are based on open-source hardware and is itself published as open-source, allowing anyone interested to learn about its deepest inner-workings.
This is a LIMITED EDITION OF 100, so sign up to get information about how to place an order:
