ultra-thin body fits easily into a guitar case or pocket, tunes down to 5 flats, metronome has 7 rhythms and 10 beats, ultra-wide tuning range of E0 to C8 (almost 8 octaves), plus 7-string guitars and 6-string basses, LCD tuner with built-in metronome - supports chromatic tuning, auto-pitch function sounds a tone when pitch is correct, reference Tone Play function makes it easy to verify tuning by ear, color: black