The radio does both. The OEM cable is setup to do an IC / condenser / Electret element mic where it sees voltage on pin 5 as shown above. This seems ideal for field work as the mic element can be much smaller (that is my basic understanding anyways). Alternatively you can use pin 2 and pull voltage from pin 5 in combination with ground to run a Dynamic mic. I only ask as I build a few replacement board assemblies for the OEM adaptor. My board has a PTT button, an Electret mic on board and a 3.5 for a headphones as well as a 3.5 for a mic if needed. This is only wired for an IC/Condenser/Electret mic.?
