Hello, Dr. Yun, an early education machine of a famous school. According to the information inquired, the famous school early education machine focuses on the research and development of children's early education machine, children's story machine, children's whole brain development machine and early education robot, pursues innovation and independent research and development, scientifically designs parenting courses, and provides a large number of early education video learning materials for children to download. The famous school early education machine uses voice operation to call hello, Dr. Yun.