61 Keys roll up piano with speaker

1,61 standard keys(include black keys).

2,128 tones,128 rhythms,45 demo songs.

3,Single finger,fingered.

4,Support MIDI out,can play with computer.

5,Support external speaker and earphone.

6,Volume control button,rhythm.

7,Mode selection(tone,rhythm).

8,Record,edit and play function.

9,Demo play.

10,Keyboard drum.

11,Start/stop,insert function.

12,Tenuto/trill function

13,Single teaching function.