the upper orange button
Power ON/OFF
the middle grey button
Power Save ON/OFF
the lower light blue button
Bidet Nozzle Cleaning
(The Nozzle is cleaned automatically every time you use it, so basically you don't need to use this button.)
the upper switch
Auto Flushing ON/OFF
(When the switch is on (the right side), the toilet flushes automatically after you stand up. When the switch is off (the left side), you need to push each of the two blue buttons at the top.)
the middle switch
Bidet Shower Temperature Controller
(The temperature becomes higher to the right. The left end is off.)
the lower switch
Seat Temperature Controller
(The temperature becomes higher to the right. The left end is off.)
the grey buttons on the lower right
Bidet Nozzle Position Controller
(When you push the left button, the bidet nozzle moves forward. The right button is for backward.)
the two blue buttons at the top
Flushing the Toilet
(The right button is for feces. The left is for urine.)