The roll-up piano has 49 simulation keys, 14 demo songs, 47 timbre, 128 Rhythms and 346 Chords, which will make you feel absolutely the same as real piano.<br/>The 49 key soft keyboard is made of silicon rubber, which will bring soft touch to fingers and rebound quickly after pressing.<br/>You can connect the roll-up piano with earphone and sound machine while palying, the stereo sound effect will bring you wonderful feeling and wonrsquot bother your neighbor.<br/>On its surface, there are rhythm, drum, sound effects, and chord learning function keys to facilitate the user to adjust the mode.<br/>Charging the roll-up piano with USB, 2.5h charging time, 4 h continuously playing time.<br/>Built-in speaker, fully adjustable volume and lighting system.<br/>Easy to roll up for storage and carrying, you can play it anytime, anywhere.<br/>Suitable for beginners or more advanced students.<br/>Condition: 100% Brand New<br/>Brand: Beiens<br/>Material: silicone rubber (keyboard); ABS plastic (control panel)<br/>Keyboard type: children learning and exercising<br/>Rated voltage: DC 4.5V or 3 x 1.5V AA battery (battery not included)<br/>Power adapter: 4.5V, 0-1000mA<br/>Color: Black-white keyboard & colorful keyboard<br/>Age: About 3 years old and above<br/>Product size(L*W): 13.2 x 800cm<br/>Package Size(L*W*H): approx. 34.5*5*18.1cm/inch<br/>Package Weight: approx. 170g<br/>Due to the difference between different monitors, the picture may not reflect the actual color of the item.