Effect: Classic style analog pedal, warm and clear sound. Function Knobs: Level knob (Adjust the volume of effect), DEPTH knob(Adjust the depth of sound), RATE knob(Ajust the speed of 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. buy it separately at Music . you will enjoy the using of this Guitar Pedal. Colour:White :Zinc Size:95 x 44 x 48mm Package Contents: 1 x Guitar Pedal Analog Tutti Effect 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.