i3 contains a variety of over 700 sounds including pianos, violins, brass, basses, woodwinds and drums, as well as synth and other sounds used in the production of electronic and contemporary music.

Refer to the specifications for further details.

The keys are touch-sensitive. You can select between Soft, Medium, Hard, and Fixed (i.e. no change) to suit your playing style.

Styles (automatic accompaniments) automatically add a "backing band" or rhythm accompaniment, and follow chords you play. The i3 contains over 280 accompaniment patterns covering a variety of genres including EDM and the latest contemporary music as well as jazz and Latin music.

Yes, it's possible by connecting the player or phone to the Audio In jack.

MP3, WAV, SMF (MIDI) can be played back on it. Please refer to the specifications for further details.

It works with six AA batteries (alkaline, or nickel metal hydride).

The i3 supports USB memory, disk, etc. formatted to FAT16 or FAT32. Please refer to the specifications for details.

You can use it to save user song data that you recorded on the i3, or to play back various types of music file (SMF, WAV, MP3) while you play along on the keyboard.

Damper pedal switch: Korg PS-1, PS-3

Half-damper switch: Korg DS-1H (i3 does not support the half-pedaling)

Expression pedal: Korg XVP-20, or EXP-2

When you press the GRAND PIANO / SOUND button (lit red), all keys will play a recommended piano sound. You can also use the dial or the CATEGORY [<]/[>] buttons to switch to a different sound.

Depending on the mute setting of the lower part, the split setting is switched automatically.

If the lower part is muted, split will be off.

If you want to turn split on, hold down the SHIFT button and press the LOWER/SPLIT part button to defeat mute.

If the lower part is not muted, the keys below the split point will play the lower part. Hold down the LOWER/SPLIT part button and turn the dial to check the volume level.

If split hold (a setting that maintains the split condition) is on, there will be no sound if the lower part is muted. Hold down the SOUND SET button and press the LOWER/SPLIT button to turn split hold off.

It is necessary to play a chord. Confirm a chord is shown on the display by playing a chord in the chord recognition area.

Depending on the sound set that's selected, the ensemble function might be disabled, and in this case the setting cannot be changed.

Hold down the SOUND SET button and turn the dial to adjust. The adjusted balance can be saved in the set list.

The maximum number of voices (notes that can be played simultaneously) is 64. It may exceed the limit when the damper pedal is used to sustain notes, and when this happens, some older notes will be cut off.

Depending on the sound set / style performance that's selected, the pedal might be disabled, and in this case pressing the pedal won't have an effect.