The DT-C2 Dunlop Deluxe Headstock Tuner provides accurate chromatic tuning-all the way down to a low B-with an easy-to-read four-color display. The DT-C2 frequency is adjustable from 430-490Hz, and it features a silent metronome for visual cue practice, Mic and Clip modes for sound or vibration-based tuning, and Flat Tuning mode.