BOSS TU 3 Chromatic Stompbox Tuner pedal

Tune your guitar or bass on stage with the TU-3, successor of the BOSS TU-2, the world’s top-selling stage tuner. Housed in a tank-tough BOSS stompbox body, the TU-3 features a smooth 21-segment LED meter with a High-Brightness mode that cuts through the harshest outdoor glare. 21-segment LED meter with brightness control. Accurate to +/- one cent. Accu-Pitch Sign function provides visual verification when tuning is complete. Chromatic and Guitar/Bass mode (tune by string number, with support for 7-string guitars and 6-string basses). Flat tuning is supported with Guitar Flat mode, which allows for “drop” tunings up to six semitones below standard pitch. Tuner automatically mutes when the tuner is on. Supplies power for up to seven BOSS compact effect pedals. BOSS five-year warranty.