Not a noise gate, and not a noise suppressor but a real hum extractor. Every musician battles hum in their signal chain. The Electro-Harmonix Hum Debugger Hum Eliminator turns it into dead silence, courtesy of a little Electro-Harmonix magic. No matter what type of pickups you use or how loud you play, the Hum Debugger will clean up your signal chain so that hum will no longer overtake your guitar signal. Simply connect the Hum Debugger to your guitar like you would any other effects pedal and you are ready to eliminate hum from your sound forever. The normal, strong toggle switch sets the amount of hum elimination. Connect your amplifier or the rest of your effects chain to the amp jack. You can connect your instrument to the input jack. The footswitch mode toggles the active and true bypass modes. It has a true bypass. This eliminator absolutely eliminates hum from any audio source. It also has tough and compact die-cast chassis and comes with a power adapter.