Your device is designed to be as easy to operate as possible.
Press the large power button once, and the device will start to operate in Relax mode, our first level.
Press again for level two, Refresh mode.
Press once more for maximum power at level 3, Recharge mode.
Press a fourth time to start Flow mode.
To switch off press one last time and your device will power down. There is no need to do anything else, as Flow will sleep after 5 minutes of non-use. To wake, simply press the power button.