This is a hand-rolled electronic piano, made of high-quality materials, and is and durable game for children. It is a good toy that can develop children's brain and cultivate their sense of hearing. The smooth surface is perfect for children to play and bring them hours of fun. Features - Material: Silicone. - Size: About 135.00X23.00X5.00cm/ 53.05X9.04X1.97inch. - With this piano, you can enjoy the joy of music and share with your friends and family. - This electronic piano is easy to store and carry, you can play anytime and anywhere. - Suitable for people of all ages, such as beginners, children, and adults. - 4D stereo speakers feel the real sound, pure , real grand piano timbre - It can be easily folded and rolled up and put in the bag, and it is convenient to carry out. Specification Product power supply: 2000MA battery or DC 5V adapter Output power: 500 MW Product tone: 128 tones Rhythm changes: 128 rhythms Demonstration songs: 15 demo songs Package list: 1 x Hand Roll Piano 1 x Data Cable 1 x Power Supply