Crank up your stompboxes to extremes with total disregard for hiss or excess noise because Noise Clamp has your back. Noise Clamp uses advanced technology to sense your guitar's dry signal and reduce the noise level within the effect loop, even on the noisiest signals. It's incredibly easy to use, thanks to the single Trigger knob that allows you to set the volume threshold that activates the pedal. With the green LED, you can easily see whether the gate is on or off. The Noise Clamp reduces noise up to 26dB, maintaining riff definition even at extreme gain levels. Noise Clamp is great for use on stage or in the studio and delivers crystal-clear affected tones free of the noise you don't want.MXR Noise Clamp Features:Eliminates hiss & excess noise from your effects chainSimple one knob controlMaintains riff definition even at extreme levelsMXR Noise Clamp Specifications:IMPEDANCEInput, Return: 1 MΩOutput, Send: 1 kΩMax Level: 10 dBVGate Attenuation: -26 dBVSignal to Noise: 99.5 dBATHD*: 0.01%Attack Time: 3 msRelease Time: 10 msBypass: BufferedCurrent Draw: 13 mAPower Supply: DC 9 volts MXR Noise Clamp Hiss and Excess Noise Eliminator Pedal.