What settings do you want -
To turn on press the square button three times quickly ..
For wattage press and hold the square button and the + key for three seconds and it will go to wattage mode - Press + or - to adjust wattage..
For voltage press and hold the square button and the - key for three seconds and it will go to voltage mode - press + or - to adjust voltage...
To lock the voltage or wattage in place press and hold + & - for 5 seconds - Do the same to unlock
Hold the + & - for two seconds and it'll display the Ohms of the atomizer connected
Press the square to fire the atomizer --- That's the main functions of the device and are all on the instructions lol