Who wants to read an instruction manual before taking a shower? Considering high-tech showers with many comfort functions, however, this can very soon be the case. Unless it is perfectly clear to the user how to operate it from the start. The electronic RainBrain shower control program is based on following system: using a touch panel and an appropriate graphic user interface, water sources, light and music are easy to control. All key functions like shower intensity types and temperature settings can be selected via unmistakable icons. Core functions like the water temperature and water start/stop can also be set via a rotating actuator.