Dogtra 4500 EDGE Manual De Instrucciones página 53

To change the program setting, follow the steps below.
Push
simultaneously
4. The display on the LCD screen will now show the icon for the
rheostat/volume or the selector/step. Repeat the steps from the
beginning, to switch back and forth from the rheostat/volume and the
selector/step style of intensity control.
Icon for the rheostat/volume
52
1. Set the transmitter's intensity
dial to 0.
2. Set the mode dial to "P".
3. Simultaneously hold down the
black button on the front of the
transmitter, along with the on/off
blue button on the back of the
transmitter.
Icon for the selector/step