Well it arrived and the picture is clear as day. Mic a bit low (level) but my test caller could hear me ok. Thanks for the recommendation.
That is the problem with webcam microphones, Windows have a boost that may work, but sometimes it will pick up too much noise,
Right-click on the speaker on the taskbar, go into sound settings, in the window that opens, find the microphone and under it click on device properties, it is between the input device label and the test your microphone thing, on the right-hand side of the next window, click on additional device properties and click on custom, there you should see microphone boost.
I have to get a new microphone to be honest, I am using a zoom H1 and while it works ok, it is not really made for what I use it for, and it is a pain anyway as i have to take it off everytime I need it for the camera.
Desktop machine Ryzen powered with windows 10 , reluctantly.