The Noise Gate Guitar Effects Pedal effectively tames your guitar signal This pedal is perfect if you're trying to reduce in your signal while you aren't playing.The Toggle Switch has two settings, Hard and Soft. The Hard setting adjust the pedal so it's release is almost immediate. The Hard setting is perfect for getting rid of unwanted string noise and creating clean silence in between the notes of a -metal riff. The Soft setting eases up on the release and allows it to end less abruptly.The Knob adjusts when the Pedal will begin cutting off a signal. If you set the Knob to -30 DB, the pedal will cut off any signal is lower than value. Setting the to higher values like 10 can create some great effects with Reverb and Distortion The True-Bypass Footswitch allows for your tone to come through the pedal unaffected in the "off" position.Note: Please note this pedal cannot powered by batteries. Need a DC 9V supply with negative in the center to up.color:BlackMaterial: alloysize:95 x 44 x 48mmPackage Contents:1 x Guitar Effect PedalOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.