With the 2 to 20 Hz upgrade, your Parapulser BASIC (2 Hz) device is permanently upgraded to a PRO (20 Hz) device. The upgrade is performed by entering a 6-digit code number into the device. You can enter the code yourself.
Starting at the third digit of the code number, the countdown for selecting the correct digit starts at "zero." This means one more keystroke is required to select the correct number.
Example: If you want to enter the number "4," press the middle button five times. Then confirm your selection with the lower button.
