Effect: Classic fuzz effect, plump and , providing you with a sound from distortion to fuzz. Volume Knob: Control the sound volume with Fuzz effect. /Tone Knob: Adjust the depth of Fuzz tone. /Sustain Knob: Adjust the degree of Fuzz sound. Meterial: Made of high quality zinc , durable and strong. Classic mini size can save a lot of space on pedal board. True Bypass: LED indicator shows the working state. True Byapass switch lets your instrument signal pass through a non-electronic bypass line when the effect is disengaged. Note: note this pedal cannot powered by batteries. Need a DC with negative in the center to power up. Colour:silver :Zinc Package Contents: 1 x Guitar Effect Pedal 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.