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.

• Professional-Grade Chromatic Tuning for Guitar and Bass: Trusted by musicians worldwide, the TU-3 delivers highly accurate chromatic tuning with a wide pitch detection range, making it ideal for both guitar and bass in rehearsal, recording, or live performance.
• Bright 21-Segment LED Display with High-Brightness Mode: The TU-3’s clear LED meter offers instant visual feedback, while the High-Brightness mode ensures readability on dark stages and in bright outdoor light, giving you confidence to stay in tune anywhere.
• Flat Tuning, Drop Tuning, and Bass Tuning Options: From standard tuning to flat tunings, drop tunings, and bass tuning up to six semitones down, the TU-3 supports a wide range of styles, offering accuracy and flexibility for any genre or player.
• Mute and Bypass Function for Silent On-Stage Tuning: Seamlessly tune between songs with the TU-3’s mute and bypass functions, which allow you to check your pitch discreetly and maintain a professional stage presence without distracting your audience.
• Rugged BOSS Stompbox Housing for Long-Term Durability: Built in the iconic BOSS stompbox format, the TU-3 is designed to withstand heavy use, frequent travel, and demanding gig conditions, providing years of dependable service to musicians worldwide.
• Professional-Grade Chromatic Tuning for Guitar and Bass: Trusted by musicians worldwide, the TU-3 delivers highly accurate chromatic tuning with a wide pitch detection range, making it ideal for both guitar and bass in rehearsal, recording, or live performance.
• Bright 21-Segment LED Display with High-Brightness Mode: The TU-3’s clear LED meter offers instant visual feedback, while the High-Brightness mode ensures readability on dark stages and in bright outdoor light, giving you confidence to stay in tune anywhere.
• Flat Tuning, Drop Tuning, and Bass Tuning Options: From standard tuning to flat tunings, drop tunings, and bass tuning up to six semitones down, the TU-3 supports a wide range of styles, offering accuracy and flexibility for any genre or player.
• Mute and Bypass Function for Silent On-Stage Tuning: Seamlessly tune between songs with the TU-3’s mute and bypass functions, which allow you to check your pitch discreetly and maintain a professional stage presence without distracting your audience.
• Rugged BOSS Stompbox Housing for Long-Term Durability: Built in the iconic BOSS stompbox format, the TU-3 is designed to withstand heavy use, frequent travel, and demanding gig conditions, providing years of dependable service to musicians worldwide.