Features: Portable roll-up piano, a great musical toy for children to cultivate their musical talent and the flexibility of fingers.  49 silicon keys, soft and comfortable to play, and rainbow color design, very attractive to children.  Built-in 8 different tones and 6 demo songs, and supports record and sustain functions, easy and fun to play. Children will love it so much.  Built-in speaker, also supports connecting external headphone or speaker via the 3.5mm output jack.  Roll up design, you can easily roll it up for convenient storage or take it to anywhere and play it anytime.   Specifications: Main Body Color: White;  Material: Silicon + Plastic;  Keyboard: 49 keys;  Tone: 8;  Demonstration songs: 6;  Power Supply: 3 * AA batteries or DC 5V power adapter(both are not included);  Main body size: 18 * 10 * 2cm / 7.1 * 3.9 * 0.8in;  Keyboard size: 70 * 12.5 * 0.9cm / 27.6 * 4.9 * 0.4in;  Product Weight: 600g / 1.3lbs;  Package Size: 22.5 * 15.5 * 8cm / 8.9 * 6.1 * 3.1in;  Package Weight: 772g / 1.7lbs;   Note: Batteries and power adapter are not included.   Package List: 1 * Roll Up Piano;  1 * Carry Bag