The BOSS TU-3 Chromatic Tuner Pedal sets the standard for professional instrument tuning, delivering precise, reliable performance in a rugged stompbox design built to withstand years of live use. Featuring a bright 21-segment LED display with High-Brightness mode, the TU-3 ensures crystal-clear visibility whether you are on a dark stage or performing outdoors in direct sunlight. Its versatile functionality includes support for flat tuning, drop tuning, and bass tuning up to six semitones below standard pitch, making it an essential tool for guitarists and bassists across all genres. A convenient mute and bypass function allows for silent tuning during live shows, ensuring seamless transitions between songs without distracting your audience. Built with the legendary durability and reliability that BOSS pedals are known for, the TU-3 is trusted worldwide by professional musicians who need consistent tuning accuracy, robust construction, and stage-ready features. Whether you are practicing at home, recording in the studio, or performing on tour, the TU-3 Chromatic Tuner Pedal provides the precision, visibility, and dependability needed to keep your sound perfectly in tune every time you play.