offering 11 different modulation effects that guitarist needs . This bright-yellow pedal is great for a space-conscious pedalboard without sacrificing stereo functionality and tone quality. High-quality stereo modulation effects 11 modulation effects from classic to experimental 7 preset slots for saving your favorite Plug Type:UK plug,it applies to , the United Kingdom and so on. Color: yellow : aluminum True bypass Support 9V 300mA center negative power supply(the package doesn't included it ). use power supply with 9V and at least 210mA current value for the unit. Incorrect power supply may cause short-circuit and damage. 7 preset slots When any parameter is changed that is different from the saved preset parameters, the LED indicator will blink slowly indicating the change has not yet been saved. Press and hold the SAVE button to save current . The LED will blink swiftly, indicating the preset has been saved successfully.Pressing the SAVE button quickly will change to the effect without saving. Switch presets Press the SAVE/SELECT button to switch between the 7 different modulation effects. LED indicates the currently effect. True bypass Reset To reset the pedal to , first power off the pedal. , press and hold the SAVE button while powering the pedal back on. The 7 LED indicators will begin to blink. Release the SAVE button LED, then wait until the indicators stop blinking to complete the reset. You can cancel the reset by unplugging the power supply releasing the SAVE button. Package Contents: 1 x Guitar Effects Pedal 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.