1、Effect Pedal: This effect pedal can add a warm, natural tube overdrive sound effect to your guitar. 2、Free Control: There are 3 knobs, which enable better and accurate control on DRIVE, LEVEL and TONE. 3、Low Noise: The application of pedal switch ensures low noise and excellent sound quality as well. 4、Metal Shell: Sturdy metal shell covered with green paint will offer secure protection for long use. 5、Easy to Carry: Designed to have small size and light weight, the daily carrying are very convenient. 1 x Guitar Effect Pedal1 x User Manual1 x Hook and Loop Fastener1 x Sponge Item Type: Guitar Effect PedalMaterial: MetalColour: GreenInput Impedance: 470 kilo ohms. Output Impedance: 10 kilo ohms. Product Power Supply: External 9V AC power adapter (not included in the product). Length: Approx. 94mm / 3.7inWidth: Approx. 51mm / 2.01inHeight: Approx. 53mm / 2.09in