The BOSS OD-3 OverDrive gives guitarists a greatly expanded range of smooth overdriven tones, making it one of BOSS's most versatile overdrives ever. Dual-Stage Overdrive Circuit offers a level of sustain and compression unmatched by any overdrive pedal in history. Dramatically increased full bass response and improved dynamics yield a "bigger" sound than any previous BOSS overdrive pedal. Dynamic, non-muffled tones reminiscent of classic overdriven "stack" amps. Straightforward Drive, Tone and Level controls. BOSS 5-Year Limited Warranty.