Guitar and Bass players hate noise; whether it is from pickups, lights or pedals, it doesn't matter. The Mooer Noise Killer provides a simple and effective way to eliminate that noise. The Noise Killer features a Threshold control, which sets the point at which the unit starts to "kill" the noise. In addition, the Hard/Soft switch lets you decide how aggressively the Noise Killer treats the offending signal. It's that easy. If you need a quick and easy way to eliminate noise, the Mooer Noise Killer is your pedal.