Features: Noise gate pedal for reducing the noise from input signal and causing no signal quality loss. 2 working modes: HARD mode(reduce the noise caused by high gain effect pedal), SOFT mode(reduce the noise frommonocoil and other devices). With one knob for adjusting noise control level(-70dB to +10dB). True bypass footswitch for switching between noise gate function and bypass status, and with LED indicator. Full metal shell and compact size design, sturdy and portable. Specifications: Input: 1/4 inch monaural jack(impedance: 1M ohms) Output: 1/4 inch monaural jack(impedance: 100 ohms) Power Supply: DC 9V(plug polarity is positive on the barrel and negative in the center) Working Current: 26mA Item Size: 9.5 * 4.8 * 4.5cm/ 3.74 * 1.9 * 1.8in Package Size: 1 * Effect Pedal 1 * Users Manual(English)