Switch channels on multiple amps and easily automate any non-MIDI functions with Control Switcher. Using a Commander or Ground Control Pro, Voodoo Lab's new Control Switcher gives you instant MIDI programmability for controlling all footswitchable amp functions including channel switching, reverb, boost, EQ, loop and more. Features 4 completely isolated relays with front panel instant access buttons, separate 1/4" mono outputs and a multi-DIN connector. Runs off a standard 9V power supply and is compact enough to mount behind an amp, inside a rack, or on a pedalboard.