What equipment is used to record courses?

The equipment used to record the course includes curtain, earphone, DV, camera, SLR and so on.

When recording a course, you should record it in a quiet and closed room, close the doors and windows to avoid the interference of external sounds, and turn off electrical appliances that may produce noise, such as air conditioners, fans, refrigerators, etc. Turn off the phone or set it to "flight mode" to avoid signal interference. Try not to find an empty room to record, so as to avoid large indoor echo and reverberation.