Harley Benton Evil Twin, Effect Pedal for Electric Guitar, Analogue dual overdrive & tubedrive, Effects can be used simultaneously, individually and in any order, Effect A: Ultra-wide dynamic range and exceptionally open, tube-like drive tone, Control A: Drive, Level, Tone, Hot/Warm switch, On/Off footswitch with LED indicator, Effect B: Adaptation of the original Japanese green OD circuit with smooth gain and pronounced mid-hump characteristic, Controls: Drive-/Volume-/Tone, High-Peak-/Low-Peak-switch, Hot/Warm switch, On/off footswitch with LED indicator, 3-Way switch for effect order and single-effect-only mode, True bypass design, Powered by a 9 V DC power supply unit (suitable power supply unit available under item no. 409939 - not included), Power consumption: 100 mA, Dimensions: 120 x 95 x 37 mm, Weight: 0.32 kg@+@+*Note:* No battery operation possible