Boss TU12 guitar tuner

Chromatic Tuner - C1 to B5 range

• Tuning range from C1 to B5 for the TU-12. Extra-wide C1 to B6 range for the TU-12H/12H.
• LED tuning indicators allow at-a-glance confirmation of correct tuning, even on dark stages.
• Concert pitches are adjustable in 1Hz increments.
• A built-in condenser microphone enables tuning of acoustic guitars.