There's nothing more exciting for guitarists than finding a good Distortion pedal. This Distortion Pedal will lead you to an amazingly musical experience. Take it and rock Features: Tube distortion simulation and built-in FET transistor. True bypass design, minimizes tone loss and get more control of your pedal. High gain distortion, low power consumption. 3 adjustable knobs: Gain, Tone, Level Gain knob : Adjusts the amount of distortion. Rotating it clockwise increases the effect, whereas counterclockwise rotation reduces the effect. Tone knob: Controls the tone. Rotating the knob counterclockwise will make the sound milder, while rotating it clockwise will make the sound sharper. Level knob: Adjusts the level of the effect sound. Aluminum alloy housing, sturdy and durable. Durable jacks and foot switch. Designed with on / off LED, instructs effects status. Powered by a 9V AC power adapter or 9V battery(neither included). Specifications: Input impedance: 500 kohm Output impedance: 150 ohm Recommended load impedance: 10 kohm Equival input Noise: -90 dBu or less Power supply: DC 9V battery or AC adapter (neither included) Current draw: 5.5 mA (DC 9V) Product size: 11.5 * 6.5 * 5cm / 4.5 * 2.6 * 2in Product weight: 238g / 8.4oz Package size: 14 * 9 * 7cm / 5.5 * 3.5 * 2.8in Package weight: 283g / 10oz Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Distortion Effect Pedal 1 * User Manual (English & Chinese)