Quantity   Component name
1 × Raspberry PI 2 or above
1 × Raspberry PI with ethernet e.g. a PI Zero + adapter
1 × USB audio adapter http://www.ebay.de/itm/321643468077?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITnents
1 × Speaker