Features: New generation roll up piano, is designed in mini and compact size that is portable: simply roll it up and put inside the storage bag, you can bring it everywhere. Its ready for playing after unfolded, it can connect externally home theater, and stereo, brings more joys and happiness during family parties and gatherings. 128 tones and 100rhythms are available for product, including piano, saxophone, harp, guitar are available for selection. It\'\'s not only for professional players, but good for beginners as well, connect it with earphone, one can play it silently, with numerous functions and settings such as recording and demonstrative songs, which serves as supplementary tools during practice. Specifications: 1) Keyboard: 49 standard keys (4 octachord) 2) Tone: 128 tones are available (001~128 tone control) 3) Rhythm: 100 accompaniments available (001~100 rhythm accompaniment) 4) 20 demo songs 5) Vibrato function 6) Midi out: 16 output channel 7) Digital display: in which the tones and rhythms of the roller piano are displayed 8) Inner connection of amplifier: earphone / amplifier (home theater) can be connected externally 9) Power supply: with power saving design. Inbuilt 4 AA batteries (can be played continuously for 15 hours), available for outer connection of power 10) Foldable, easy to carry 11) Control box size: 10.2(W) x 18.4(H) x 3.3(D)cm 12) Keyboard size: 88.5(W) x 17.5(H) x 0.4(D)cm Inner packing: Gift box Dimensions: 28.5 x 20.0 x 9.0cm Outer packing: 12pcs/ctn Dimensions: 57.47 x 41.28 x 28.58cm N.W.: 10.5kg G.W.: 15.7kg Conveyance: Qty/20\'\' FCL: 4,596pcs Qty/40\'\' FCL: 9,552pcs Qty/40\'\' HQ: 12,024pcs