BASED ON PRO Co Rat. Three Mode effects Rat Distortion,Big Boost- Guitar Effect Pedal Based on Pro Co Rat Distortion About The Super RAT: The SUPER RAT is based on the Pro Co RAT Distortion Pedal , IC :LM308 And Improvements based on the circuit adds two effects , Use a three-position toggle switch to change the effects: classic rat ,big boost ,turbo rat. So it can use as distortion ,boost ,preamp, Colour: Black material: metal One three-position switch: C- classic rat distortion , B- big boost , T- turbo rat distortion. Tone( Filter) control Gain(Distortion)control Volume control True bypass switch 100% analog signal path On/Off LED indicator Dimensions (W/D/H): 112mm X 65mm X 38mm Weight: 0.6 lbs. (280g) Power Consumption: 9VDC/10mA Battery Type: 9VDC x 1 Input Impedance: 500k ohm (min) Output Impedance: 10k ohm