What is the function of the buttons on the Xiaomi Truclean W20 Wet Dry Vacuum?

1. Power on/off button: Press it to turn on or off the main unit;
2. Switch mode button: Press it to switch the mode between Standard mode and Water absorption mode. During the cleaning process, press to switch modes and press and hold on it for 1.5 seconds to turn on or off the Turbo mode;
3. Self-cleaning button: When the device is in charging mode and the battery indicator is green, press it to turn on quick self-cleaning, and press and hold on it for 3 seconds to turn on strong self-cleaning. After self-cleaning, it will automatically stop. If you want to stop midway, press the button.