It all started with **Werner Jarmatz** from <a href="https://www.fabcity.hamburg/en/network/labs-werkstaetten/" target="_blank">HoFaLab</a>. He has developed a small autonomous audiocube that can be controlled via WiFi. The housing is made of wood, the cover and speaker holder are 3D-printed. The control unit inside is a Raspberry Pi, a microcomputer that is barely bigger than a matchbox. There are also a few electronic components that can be wired together very easily.