This roll-up piano is easy to carry, multifunctional, and built-in 1200mAh lithium battery for easy use. Is a good in your life. Features: Roll Up Piano: Standard 88 keys, the piano can be rolled up, easy to carry. 140 tones and 128 rhythms to choose from. There are 80 demo songs, with two kinds of demo song demonstration modes. 32-bit microprocessor, multifunctional, and the tone more mellow. Multi-function: Built-in speakers, high-quality real stereo output, easy to achieve recording, editing, playback, sustain, , teaching, and other functions. It has a MIDI function. It can be connected to a computer via a USB cable, the cable can be used to record and edit playing songs on the computer, and connect to an Android phone via an OTG cable, BT, wireless connection APP. With microphone, headphones, speakers, pedal interface. For all Ages: This roll-up piano is made of high-quality silicone keyboard, , wear-resistant, soft and durable. The sound is very crisp and full of energy, just like a real piano. Very suitable for making , music, adults, and beginners. It can also meet the teaching requirements, and it is also a good for elderly friends to entertain their bodies and minds. Built-in Rechargeable Battery: Built-in 3.7V 1200mAh rechargeable lithium battery, charging for about 2.5 hours, continuous use for 12 hours, without frequent battery replacement, more convenient to use, allowing you to practice fingering anytime, anywhere. Very suitable for classroom teaching and group teaching. Warranty: If there are any problems, please our store in time. will give you a satisfactory solution. Specification: Name: Roll up piano Main material: ABS, silicone Battery: 3.7V 1200mAh, charging time: 2.5h, working time: 12h Size: 133.5*22cm Package Information: Package size: 27.5*19.5*9cm Package weight: 1524g Gift Box Packaging