twdyc roll up piano 49 keys silicone portable foldable colorful soft keyboard electronic piano rainbow key rechargable twdyc 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.