Valeton Surge EP-1 Mini, 2-in-1 Volume and Wah Pedal, For electric guitars, electric basses, and keyboards, LEDs indicate which mode is activated, Tap the foot switch to change the mode, Jack input and output, Power consumption: 22 mA, Dimensions: 148.5 x 65.5 x 61 mm@+*Note:*@+@+ Requires a 9V power supply (not included, corresponding item: Article Nr #409939#)