Specifications:Input Impedance:1m Ohmsutput Impedance:100k OhmsPower Supply: DC 9V(Plug polarity is Positive on the barrel and negative in the center)Working Current: 26mAWorking Modes2 Working Modes: Hard/Soft.Hard: Provide hard effect of noise reduction.Soft: Provide soft effect of noise reduction.Features:- The noise gate guitar pedal can reduce the noise form input signal and keep the quality of your original signal.- - It have 2 Working Modes: Hard/Soft.- - Hard: Provide hard effect of noise reduction.- - Soft: Provide soft effect of noise reduction.- - Its full metal casing makes it very small and exquisite, and like most great effects pedals it has true bypass.- - Compact size noise reduction pedal, aluminum alloy shell, lightweight and durable.- Note:- 1.Power adapter is not included.- - 2.Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.- Package Includes:- 1 * Guitar Effect Pedal-