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 - a feature the guitarists at GearNuts love! 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.