Features: 1.Novel appearance, can be rolled and carried, easy to clean, carry and maintain. 2.Can be used to make New Year gifts, Christmas gifts, Easter gifts, Spring Festival gifts, etc. 3.Can learn a wealth of music knowledge, cultivate a sense of rhythm, and train coordination of left and right hands, beginners can master standard basic playing skills. 4.Conduct comprehensive musical ability training for beginners to stimulate their inner understanding of music. 5.Volume piano has 49 simulated keys, 14 demo songs, 47 tones, 128 rhythms, making you feel exactly like a real piano. 6.USB charging, charging time is 2.5 hours, continuous playing time is 4 hours. specification:Condition: 100% Brand New Item Type: Roll-up Piano Children's color, black and white with single speaker 1. 49 key keyboard, natural environmentally friendly silicone 2. 47 tones and 128 rhythms 3. 14 Demonstrations 4. Recording, support microphone input 5. Functional Interface: Earphone, stereo, microphone 6. Power Parameters: DC5V1A 7. Power Supply Mode: Built-in lithium ion battery 3.7V (360mAh) PackageList:1 xRoll-up Piano1 x Power Cord1 x English Manual