The accompanying "small speaker" has 5 popular songs built in, and you need to bring 3 No. 5 batteries. Ergonomic design, streamlined body, no edges and corners streamlined curved body + wrapped chassis design, fit the human body and comfortable sitting feeling. The fully wrapped body is seamless and hitable, and the integrated hidden bottom design is smooth and soft without foot jamming. The front-wheel drive three-wheel has stable support, drifting in corners without rollover, the front wheel is off the ground, and auxiliary support is provided when turning, which can easily cope with various road conditions. High-strength PP material ensures a stable and safe riding experience for toddlers.