Multiple features and an ultrawide tuning range of almost 8 octaves make it easy to get the precise tuning you need.

Boss TU-80 Guitar Tuner & Metronome Guitar

Accu-Pitch function sounds a tone when pitch is correct, a Reference Tone Play function makes it easy to verify tuning by ear, and it tunes down to 5 flats.

Free <i>BOSS</i> Tuner App Now Available - <i>BOSS</i> U. S.

BOSS ME-25 Training Guide

The reliable Boss TU-80 Tuner & Metronome includes a handy, built-in metronome with 7 rhythms and 10 beats, plus a cool animated LCD display.

Zoom B2 Manual

It looks and plays like new and may be considered an equivalent to display units found in retail stores.

Boss tu-2 manual download:

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