NATURAL OVERDRIVE WITH ENDLESS SUSTAIN!Built in the tradition of the legendary BOSS overdrives, the OD-3 OverDrive pedal gives guitarists a greatly expanded range of smooth overdrive tones and improved response while staying true to the original. Dual-Stage Overdrive Circuit offers a level of sustain and compression unmatched by any overdrive pedalIncreased dynamics yield a "bigger" sound than any previous BOSS overdrive pedalDynamic, non-muffled tones reminiscent of classic overdriven "stack" ampsStraightforward Drive, Tone and Level controlsBOSS five-Year Warranty Specifications Nominal Output Level: -20dBu Input Impedance: 1 M ohm Nominal Output Level: -20dBu Output Impedance: 1 k ohm Recommended Load Impedance: 10K ohms or greater Bypass: Buffered Controls: Drive knob, Tone knob, Level knob, Pedal switch Indicator: Check Indicator (Used for check battery) Connectors: Input Jack: 1/4" Phone Type, Output Jack: 1/4" Phone Type, DC in Jack Power Supply: Carbon Zinc Battery (9V) or Alkaline Battery (9V), AC Adaptor (PSA Series Sold Separately) Expected Battery Life Under Continuous Use: Carbon (34.5 Hours), Alkaline (56 Hours) Accessories: Leaflet, Carbon-Zinc Battery