The BOSS TU30 has been a proven, go-to, all-in-one electronic Metronome and Tuner for many years. The TU30 supports tuning of all chromatic instruments, including guitar, bass and flat tuning and provides a convenient Accu-Pitch function sound as a tone when you’ve reached the correct pitch. The Metronome features multiple rhythm styles and visual display using a variety of Quarter note, Eighth rest and eighth note, Eighth note, Triple, Triple with center rest, Sixteenth note, Clave (3-2, 2-3) and a tempo range from 30-250 Bpm. The large LCD and tuning LED guide light makes the TU30 perfect on stage. Input jack and mic allows for tuning of electric or acoustic instruments. Uses AAA batteries. Oxygen Music proudly stock a great variety of Boss pedals and accessories including this very popular TU30 Electronic Metronome & Tuner.