49 keys can roll up to small size, easy to carry! Rolls up to small
size 4-octave keyboard 100 tones;40 Audio Samples(Actual Rollup
performance. ) Volume Control Operates on Batteries or the included
AC Adapter Built-in speaker Output for headphones or external
speaker Listen privately or liven up the party! Play it anywhere!
PIANO STRINGS TRUMPET ORGAN MARIMBA External headphones or audio
with MIDI connect Power:4*AA Batteries or DC 6V Adapter （P.S：Not
including power and batteries)  Specification： Control box：9.6×22.8
×3.3cm Key board: 73×17.8×0.5cm Net weight：800 g Package: Color box
Box size: 28x19.8x8.8cm Unit/ctn: 20pcs/ctn Ctn size: 57x40x45cm