JOYO JF-01 Vintage Overdrive Pedal, Provided directly by manufacturer of JOYO Technology. Product Introduction: JF-01 Vintage Overdrive pedal is one of JOYO most popular effect pedals, introducing warm overtones when used as a clean volume boost, searing tone as well as warmth of a classic overdriven tube amp. JOYO Overdrive guitar effects are the mildest of the three distortion guitar effect types, producing warmer overtones at quieter volumes and can achieve a harsher distortion as gain is increased. JOYO guitar effects "Distortion", "Overdrive" and "Fuzz" are similar in effect, but they each have subtle differences in tone, ranging from warm mild overtones to an extreme manipulation of the guitar signal. Distortion effects produce approximately the same amount of distortion at any volume, and its sound alterations are much more pronounced and intense. Fuzz effects alter the audio signal until it is nearly a square wave and will open up a whole new experience when playing the electric guitar. Specifications: Input Impedance: 500KΩ Output Impedance: 10KΩ Running Current: 7mA Power: 6F22 9V Battery/ DC 9V adapter (None included) (When connecting the adapter, battery power would be cut off automatically) Dimension: 120(L)X 72(W)X 55(H) mm Weight: 290g Package included: 1 x JOYO JF-01 Vintage Overdrive Pedal. 1 x User's Manual.