Electro-Harmonix Hum Debugger Hum Eliminator Pedal. Not a noise gate, and not a noise suppressor - but a real hum extractor! Every musician battles hum in their signal chain. The EHX Hum Debugger 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! Product Highlights: True bypass. Absolutely eliminates hum from any audio source. Tough and compact die-cast chassis. Power adapter included. Product Features: Normal/Strong Toggle Switch: Sets the amount of Hum Elimination. Amp Jack: Connect your amplifier or the rest of your effects chain to the AMP jack. Input Jack: Connect your instrument to the INPUT jack. Footswitch: Toggles the active and True Bypass modes. Product Specifications: Circuit: Digital. Bypass: True Bypass. Audio: Mono. Power Supply: 7.5VAC-400mA power adapter included. Dimensions (in): 4.75 x 4 x 2.25. Current Draw: 125mA(AC). Year Released: 2007. UPC: 683274010625.