Feature:1. Ultimate drive effect pedal gives you rich, close to distortion overspeed, more than what diode tube amplifier can provide2. Open this pedal you can find the kind of response and wide harmonic overdrive tube amplifier3. Three knobs are separately used to adjust the volume of sound (gain knob), adjust the degree of distortion (volumn knob) , and adjust the strength of the tone(tone knob)4. The True Bypass designs will minimizes tone loss to realize the original sound of your guitar5. Mode button make mode high frequency is higher than mode low, LED can visually indicate the working status of the guitar pedal, powered by DC 9V adapter, convenient to useSpecification:Item Type: Ultimate DriveMaterial: Shell: Aluminum alloyInterface: BrassComponents: Polyester fiberCircuit Board: Glass fiberConnector: ABS plasticInput Impedance: 1m OhmsOutput Impedance: 1k OhmsRunning Current: 6mAPower Supply: DC 9V Adapter(not include)Package List:1 x Effect Pedal1 x User Manual