1, Beijing Helen Conservatory of Music: This college is a comprehensive conservatory focusing on vocal music, offering professional vocal music training and courses.

2. Shanghai Helen Art Training Center: The center provides various types of art training, including vocal music, dance and musical instruments. Among them, vocal music courses cover a variety of styles and tracks.

3. Guangzhou Helen International Art Center: The center provides professional vocal music training, piano, dance, instrumental music and other courses, including children's classes and adult classes.

4. Helen Conservatory of Music in Hangzhou: The college offers a variety of vocal music training courses, including national singing, popular singing and classical singing.

5. Shenzhen Helen Music Art School: The school offers a variety of courses such as vocal music, dance and musical instruments, among which vocal music courses include pop singing, classical singing and national singing.