Guitar effect pedal with advanced noise gate Reduces the noise from input signal without lowering the quality of your original signal.Adjusting the noise reduction degree: -70-+10dB.<br> durable and sturdy.<br> LED indicator shows working state.<br> Small and exquisite,can save a lot of space on pedal board.<br> Good Noise Gate The noise gate guitar pedal can reduce the noise form input signal and keep the quality of your original signal.<br> At the same time in order to keep the tone is not be reduced.<br> So, this noise gate guitar pedal in all aspects of the performance is good job.<br> It have 2 Working Modes: Hard/Soft.<br> Hard: hard effect of noise reduction.<br> Soft: soft effect of noise reduction.<br> and like most great effects pedals it has true bypass.<br> True bypass provides transparent tone When the LED is lit up, the effect is on Specifications Input Impedance: 1m Ohms Output Impedance: 100k Ohms Power Supply: DC 9V (Plug polarity is Positive on the barrel and negative in the center) Working Current: 26mA colour: white Material: Zinc alloy size: 9.5 * 4.5 * 4.8cm Package Contents: 1 * Guitar Effect Pedal 1 * Manual(English) Note note this pedal can NOT powered by batteries.<br> Need a DC with negative in the center to power up.<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the a little different from the real thing.<br> The measurement allowed error is +/- 1-3cm.