technique features and parameter
1. cpu microcomputer control, lcd display;
2. have torque function;
3. dual display and control;
4. adopt dc motor and wheel gear box, more safety and efficiency;
5. adopt angel sensor, improve accuracy;
6. three running models: angle, speed and normal;
7. vertical support, suit for physiological need;
8. angle：-5°-120°,time angle：0-240分钟
8. suit to normal height of children from 5 to 12 years old.
9. special size for children under 5 years old can also be customized