The Boss TU-3 Chromatic Tuner is housed in a tank-tough BOSS stompbox body, featuring a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare.
The Boss TU3 allows you to choose between Chromatic or Guitar/Bass tuning modes, and enjoy visual pinpoint tuning verification with the Accu-Pitch Sign function. The TU-3 incorporates a convenient Note Name Indicator that can display notes of 7-string guitars and 6-string basses, while the Flat-Tuning mode can support up to six half-steps.