61 standard keys roll up piano
Laptop Accessory Electronic Ltd. [China] 
Detailed Product Description
1.61 standard keys
2.10 demeonstration songs
3.19 tone colors
4.32 rhythms
5.8 drum sets
6.single finger/finger chords
7.lesson mode
8.one key one note mode
9.record/play
10.19-stage volume adjustable
11.32-stage tempo speed
12.sleep mode
