JF-36 Sweet Baby overdrive pedal is referred to as a dynamic overdrive.will push your clean channel into overdrive based on your picking dynamics while it will jolt your drive channel into a wonderful frenzy! It offers "Volume" and "Drive" controls like most overdrive pedals, but the "Focus" control is what separates this pedal from other's. Heres where you can adjust the sensitivity to touch and playing dynamics for the tone you desire. Three knobs--"Volume" to adjust the output level, "Drive" to adjust distortion degree and "Focus" for adjusting distortion style. With Focus knob, enables you to shape unique tones, from sweet and soothing tone to all-out rage tone. Specifications Input Impedance: 1M? Output Impedance: 1K? Running Current: 13mA Power way: 6F22 9V Battery (unscrew to open stompbox to put in) or DC 9V adapter (None of them included) (When connecting the adapter, battery power would be cut off automatically) Dimension:118(L)X 68(W)X 50(H) mm Weight: 200g