The remote operation of Jingsijia is not complicated, and it is repetitive work. As long as you understand the basic operation of the computer, there will be no problem. At first, I was as worried as you that I couldn't use it. Now I use it skillfully. The most important thing is that it is very helpful to improve children's attention. Children do their homework faster, more seriously and more consciously, and I don't need to remind them often.