I recently bought an incar recording system, it has a built in microphone and also comes with one you plug in too, but it is bad and pics up very little sound at all. I have a pc microphone and plugged that in and noticed great improvement. Its a 3.5 jack i think, i know nothing about these. It also has 2 rings on the jack aswell. Anyone what type of microphone would suit me, dont want to spend a fortune either. Its for inside of cars