This mic transmits great and has not damage or scratches to it, It has a studio broadcast sound. Underneath it has a high and low impedence switch. It is wired for a 4 pin radio. It will take a Connex, Galaxy, Ranger, Stryker, and more. Your radio must be the kind that you can still hear the speaker if the mic is unplugged, some older radios might not work (such as older Cobras). For instance, it will work on a Galaxy or RCI base station, but not a Cobra 2000GTL or Cobra 148GTL. The mic is wired that way. DM me for offers.