Why is there a squeak when I move the mouse when listening to the sound of the microphone?

Question

Microphones

Hello. A very difficult story. Bought asrock b450m pro4 matx, be quite 600w system w9 power supply here. I connected everything, installed the processor, connected the front board. When I put the headphones in the front panel - everything is ok. It is worth connecting a microphone and it starts to terribly fonn and repeat every sound and every word. Income up to a squeak that pzh ears cuts. I inserted the microphone into the back panel, I think everything is ok. I turned on listening to the microphone in Windows and I hear something squeaking, I began to move the mouse: the squeak intensifies, it stopped, the squeak moved. What could be the reason? Hk strains the squeak so much, although it also frightens, like a bug with the front panel