Boss Killer Stompbox Chromatic Tuner
Mute/Bypass select for silent tuning with a single stomp. 11-point LED indicators and new stream meter display tuning discrepancy. 7-segment LED displays string and note names. Seven easy tuning modes. Adjustable reference pitch from 438 to 445 Hz. Foot switchable Tuner OFF mode. The TU2 may be used with optional adaptor and Jumper Cable to power up to 7 additional Boss pedals.