This Electro-Harmonix HumDebugger noise reduction pedal works great, and does the job! Includes the original box but DOES NOT INCLUDE A POWER SUPPLY. Requires a 7.5AC-400 power supply.
Here's what EH has to say:
Now, there's a way to fight unbearable noise and zap hum right out of your signal chain, with the incredible Hum Debugger from Electro-Harmonix. Better than noise gates that still let noise through with the rest of your signal, and far more accurate than mere noise suppressors that put a nasty dent in your high end, the Electro-Harmonix Hum Debugger obliterates hums and buzzes while leaving your tone intact!
Electro-Harmonix Hum Debugger Noise-eliminating Pedal Features at a Glance:
Eliminates hum from any audio source without corrupting your sound