The TU-3 is the world’s best-selling stage tuner, integrating trusted BOSS tuning technology with a compact pedal format. It is designed for high visibility with its sharp 21-segment LED meter and provides quick tuning for performers in various settings. The pedal features a mute function for silent tuning, a tone-saving buffer, and power distribution capabilities for other pedals. It supports multiple tuning modes, including Chromatic and options for guitar and bass, making it suitable for a wide range of instruments. With its road-tested durability, the TU-3 is a favorite among musicians seeking reliable performance in demanding environments.