Used BOSS tu-3s Tuner Pedal

Keep your rig perfectly in tune with this used BOSS TU-3S Chromatic Tuner in great condition. Compact and rugged, it delivers fast, accurate tuning with a bright 21-segment LED meter and selectable chromatic or guitar/bass modes. The ultra-small footprint preserves precious pedalboard space, while true bypass ensures clean tone when disengaged. Supports standard and flat tunings, A4 reference calibration 436–445 Hz, and runs on 9V DC power for reliable stage or studio performance.