The Boss SD1 Super Overdrive Pedal delivers exciting overdrive without ruining your guitar’s harmonic overtones.The SD1 is equipped with a tone control allowing any desired boost or cut in the high band to produce more varied overdrive effects. Boss PedalsRecognized by guitarists everywhere as the world’s first name in compact effects pedals, BOSS makes sure you get the tone you want every time you play. Whether it be classic or hard rock, blues, jazz, country, funk or something new, wild and completely on the edge, BOSS helps you find your tone. Beyond the killer effects pedals, BOSS is also constantly pushing the envelope to develop innovative multi-effects, rhythm machines and other easy-to-use instruments for musicians of all types. Put simply, BOSS gives you the great-sounding tools you need to spend more time making great music. CALIFORNIA PROPOSITION 65 WARNING – WARNING: Cancer and Reproductive Harm –