The BOSS TU-3W Waza chromatic tuner pedal takes everything you love about the popular TU-3 and enhances it with redesigned circuitry, offering exceptionally pure audio pass-through. Also, thanks to this updated circuitry, the TU-3W features selectable buffered and true bypass. Beyond that, you get the same rock-solid tuning and innovative features that you've come to expect from the TU-3, such as an easy-to-read LED display and various tuning modes. Chromatic mode is ideal for tuning by note name, while Guitar/Bass tunes by string number - even for 7-string guitars and 6-string basses. Guitar Flat mode is tailor-made for Drop tunings. The BOSS TU-3W Waza is a pedalboard necessity!