1. From the company's point of view, the online piano lesson of each partner education is a course launched by Shandong each partner education technology Co., Ltd., which was established on February 24, 2020 and has a formal education business license, which is very reliable.

2. From the perspective of teacher education, the online piano course launched by Shandong Peiban Education Technology Co., Ltd. has a group of professional piano teachers, which is very good.