Boss Universal Calibration Tuner

Boss Chromatic Tuner TU-3 (B). • Features a 21-segment LED meter with brightness control and a High-Brightness mode for clear visibility outdoors.,• Accu-Pitch Sign function provides precise visual verification when tuning is complete.,• Offers versatile tuning with Chromatic and Guitar/Bass modes, supporting 7-string guitars and 6-string basses.,• Guitar Flat mode supports drop tunings up to six semitones below standard pitch.,• Automatically mutes the output signal when the tuner is activated for silent on-stage tuning.,• Supplies power for up to seven BOSS compact effect pedals, acting as a power hub for your pedalboard.,• Delivers professional-grade tuning accuracy of ±1 cent.,• Housed in a rugged, road-ready BOSS stompbox body for exceptional durability.