Since tone is in the hands, EarthQuaker Devices decided to keep the controls of the Acapulco Gold as simple as possible. The footswitch turns the pedal on and off, and the giant knob controls the output volume. That’s it. The rest is at your fingertips. Want less gain? Turn down your guitar’s volume knob. Need a darker rhythm tone? Roll back your guitar’s tone control. Easy, right? Tech Specs Measures: 4.75 x 2.50 x 2.25 with knobs Current Draw: 65mA Input Impedance: 1M Ohm Output Impedance: <1K Ohm Flexi-Switching: This device features Flexi-Switch™ Technology! This relay-based, true bypass switching style allows you to simultaneously use momentary and latching style switching. For standard latching operation, tap the footswitch once to activate the effect and then tap again to bypass. For momentary operation, hold the footswitch down for as long as you’d like to use the effect. Once you release the switch the effect will be bypassed. Since the switching is relay based, it requires power to pass signal.