Excuse me, how to connect with the mic socket of the camera?

The camera itself has a strong directional microphone. Since it is a microphone socket of the camera, it is generally an interface for external extension microphone. The usual specification is 3.5 or 6.5 in diameter. Generally used for interviews or audio signal transmission and recording at a little distance. You can also use wired or wireless microphone receiver to connect with the mic socket of the camera. If the socket diameter does not match your existing equipment, you can use the adapter plug to convert it!