The Ferrofoon is a sound-object constructed from steel producing steel sounds. The sounds are generated by steel nails scraping circular steel plates. The sounds vary from mean screeching noises to subtle scraping tones.

Underneath it's metal skin the Ferrofoon uses a micro-controller specifically programmed for the Ferrofoon to control 8 electromotors. An external computer is not needed.

(size 0.5 x 0.6 x1.7m)