It has chord finder, chord name finder, chromatic tuner, metronome and tone generator functions.

          The J & H DRC-10 Dr. Chord is a portable, accurate and battery-powered multifunction unit with very big LCD screen and bright blue backlight. It has chord finder, chord name finder, chromatic tuner, metronome and tone generator functions. Most of all, the DR. CHORD contains over 2,500 chords and over 500 unique chord types, you can find the chord position you need and the name of chord you do not know from Dr Chord. It is very suitable for both beginner self-study and classroom use. It will be your good partner of guitar learning and a good assistant of teacher. Owning one Dr. Chord, you will own a chord encyclopedia, and accurate chromatic tuner, an accurate metronome and an accurate tone generator ……

Specification:

1.Chord number:2640 chords.
2.Chord style:right and left handed chord.
3.Chord searching:
   (1).Finger positions on guitar fretboard;
   (2).Chord name for one set of specific finger positions.
4.Tuning:Chromatic tuning.
5.Tuning range:A0(27.5HZ)~C8(4186.01HZ).
6.Tempo range:30~250BPM.
7.Beat:0~9.
8.Rhythm:
9.Tones generated:C4(32.7HZ)~B4(493.883HZ).
10.Dimensions:120(L)x70(W)x28(D)(mm).
11.Weight:Approx.:150g(Including battery).