1. Zheng Jin Student Tablet is a tablet computer owned by Shenzhen Hanzhihuang Electronics Co., Ltd., which passed the test of the marketing department and went on the market. It belongs to a formal and reliable enterprise type.

2. Kim Jong Student Tablet is a tablet owned by Shenzhen Hanzhihuang Electronics Co., Ltd. It is a legitimate business enterprise registered and certified by the Ministry of Industry and Information Technology, and it is very reliable. Not pyramid schemes. Zheng Jin Intelligent Learning Machine is a special point reading machine for students' tablet network courses. From the first grade of primary school to junior high school textbooks, English learning and teaching are synchronized.