2. Sound system (headphones and microphones can also be used instead)

3, computer (you can record the screen and do PPT explanation. You can also edit recorded audio and video)

4. Full-automatic recording and broadcasting host (instead of recording classroom courses)

5, virtual studio system (alternative, strong hands-on ability can be done with non-editing software)

6. Software requirements: If piracy and infringement are not considered, plus self-learning ability is strong. Just look for pirated non-editing software online. Plus commonly used non-editing software. There are also different demonstration software for different courses.