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Designed for guitar, bass, ukulele, and chromatic applications, Boss's TU-01 provides convenient and reliable tuning in a headstock clip-on form-factor. Its display offers you a note indicator and a digital meter, as well as a dual-light mechanism to let you know when you're in tune. The TU-01 also sports an adjustable viewing angle and a folding construction for transport in your case or gig bag.