Behringer Noise Reducer NR300 Ulitmate Noise Reduction Instrument Effects Pedal Effectively eliminate unwanted noise and hum without altering your tone This BEHRINGER product has been designed to compete head to head with leading products on the market Preserves the original attack and envelope while leaving your playing and dynamics intact Dedicated Threshold and Decay controls plus a Mute mode for awesome flexibility Additional Send/Return loop for noise suppression of external effect units