How to use:
1: Press A for 2 seconds to open,and another 2 seconds to shut down(no matter what modes the device is in).
2: Press B for 2 seconds,you can switch between Chord table mode and Circulation mode.
3: When it is in Chord table mode,Area display of chord name and display of fingering chart in light,area display of metronome and chords number in darkness.
4: When it is in circulation mode,Area display of chord name and display of fingering chart all in light

CHORD Table Mode
1. Press A for 2 seconds to open,and another 2 seconds to shut down (no matter what modes the device is in).
2s B for 2 seconds, you can switch between Chord table mode and Circulation mode.
3. When it is in Chord table mode, Area 1 and 2 in light, area 3 in darkness.
4. When it is in Circulation mode, area 1, 2 and 3 all in light.

How to choose chords:
Press CHORD button to choose C,D,E,F,G,A,B.
Press 7TH-9THto choose segment chords
Press MAJ/MINto choose major and minor chords

How to reserve chords into device:
Press 7TH-9TH2 seconds,and chords numbei in area 3 flashes,then press 7TH-9TH again for 2 seconds to confirm reserving the chords into device.
How to eliminate the chords
Press 7TH-9TH and MAJ/MIN buttons at the same time for 2 seconds,and area 3 flashes,and the stored chords are eliminated successfully.
Circulation Mode
Press Power button to star playing the stored chords,at the same time,the metronome in area 3 starts flashing. Press power button again to suspend playing.
Press 7TH-9TH,the metronome tempo+1,press longer to increase the tempo.
Press MAJ/MIN,the metronome tempo-1,press longer to decrease the tempo.

Note: The device will shut down automatically after 5 minutes if it is left without any operations(except in circulation mode).