You can utilize the Fender® one button on/off footswitch (part #0994049000) with the Fender Mustang™ I and II as well as the Fender Bronco™ 40 amps to switch between two of your favorite Presets.
To use the footswitch with the amp, plug it into the FTSW jack on the top panel of the amp. Then, select the Preset that you want to assign to the footswitch and press the Save
button. The Save
buttons will start to flash rapidly. (You can press the Exit
button to cancel the operation at this point.) Next, press the footswitch button to select either the Red or Green LED next to the FTSW jack to assign it to the selected Preset. Finally, press the Save
button to confirm the footswitch assignment.http://www.fender.com/store/footswitches/1-button-economy-onoff-footswitch-with-14-jack/