Boss NS-1X Noise Suppressor PedalNext generation noise suppressor and gate for guitar, bass, and other electronic musical instruments Intelligent BOSS MDP technology eliminates noise with no impact on playing feel or response Intuitive operation with Threshold, Decay, and Damp knobs Reduction mode for general noise suppression applications Gate mode provides ultra fast noise elimination for tapping, sweep picking, and heavy rhythm styles that rely on high gain tones Mute mode for