Boss TU-3S Mini Chromatic Guitar/Bass Tuner Pedal. An even more pedalboard friendly-version of the industry standard TU-3, the Boss TU-3S is the same great pedal that players have come to known but takes up that much less real estate.Complete with pitch adjustment and multiple modes, this is the perfect tuning pedal for those who need to maximize every square inch of their pedalboard. The item "Boss TU-3S Mini Chromatic Guitar/Bass Tuner Pedal" is in sale since Friday, December 29, 2017. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Parts & Accessories\Tuners". The seller is "warpdrivemusic" and is located in Brookfield, Wisconsin. This item can be shipped to United States.