SmartControl: on/off button and volume control by rotating: This cutting-edge technology makes the operation easy – simply push the shower to switch it on and with the ProGrip control the desired amount of water; more interrupting the button press to your shower or to terminate. The next start, the quantity is already by default. You want hand and overhead shower heads at the same time? Here For Both Buttons activate Safe stop plus: the water temperature, so is controlled, it isn't that 38 °C Limit. If you prefer Heißeres water deactivate the restriction by pressing the safe stop button. Safe plus is a this automatically the temperature not over 50 °C and lower creates double Absicherung. Grohe TurboStat: These Precision Control Technology tempered the water instantly on the selected temperature and keep you reliable constant regardless caused by changes by temperature changes of water supply or water pressure., Manufacturer: Grohe