Introductions: If you are looking for a piano that you can take anywhere, anytime, we recommend our 88 keys Roll Up Piano, This piano has 128 International standard tone, 128 International standard rhythm, 15 demo songs and other sound effects.USB MIDI output,can be connected to the computer for editing music. Support external headset so as not to disturb others. This piano can be folded, small design, easy to carry. And it built-in 1000mah rechargeable battery, charge for 2 hours, can be used for 8 hours, allow you practice fingering anytime and anywhere. Great for classroom teaching and group teaching settings. Give your friends and kids a good christmas gifts or birthday present. Features: 1. Built-in 1000mah rechargeable battery, charge for 2 hours, can be used for 8 hours 2. 128 International standard tone, 128 International standard rhythm, 15 demo songs, suitable for piano beginners 3. Support the use of Bluetooth connected devices 4. Support External speaker or Headphone use 5. Foldable, small design, easy to carry Specifications: 1. Material: Silicon Plastic 2. Color：Black White 3. Keyboard model: 88 key standard piano key 4. Tone:128 International standard tone 5. Rhythm:128 International standard rhythm 6. Demonstration songs:15 7. Bluetooth：Yes 8. Power supply: USB-powere d computer or Built-in 1000mah rechargeable battery 9. Piano Dimensions:（54.3 x 7.6 x 0.79）inch/ （138 x 19.2x 2 ）cm 10. Piano Weight:2.65 lbs/ 1.2 kg Package Includes: 1 x Roll-Up Piano 1 x Sustain Pedal 1 x USB Cable 1 x English Manual