BOSS TU-3S Ultra compact tuner for guitar and bass

The industry-standard tuner for guitar and bass in an ultra-compact size for pedalboards. The display and tuning functions are identical to the world’s top selling stompbox tuner, the BOSS TU-3—the only thing eliminated is the pedal switch. 21-segment LED meter with brightness control. High Brightness mode enhances meter visibility outdoors. Accu-Pitch Sign function provides visual verification when tuning is complete. Chromatic and Guitar/Bass modes, with support for 7-string guitars and 6-string basses. Guitar Flat mode supports “drop” tunings up to six semitones below standard pitch. Powered by optional PSA-series adapter; DC Out jack for powering up to seven BOSS compact effect pedals via an optional PCS-20A daisy-chain cable. BOSS five-year warranty.