Code Red Headsets INVESTIGATOR-M3 Investigator Low Profile Two Wire Microphone with Clip and M3 Connector Two wire, low profile microphone with clear acoustic tube earpiece. Low profile microphone, with push to talk button, clips to shirt or jacket and provides near hands-free communications. The clear tube and ear tip have field replaceable components, which eliminates any downtime. Cord is reinforced with a Kevlar stand to insure reliability. Code Red Headsets INVESTIGATOR-M3 Investigator Low Profile Two Wire Microphone with Clip and M3 Connector Features: Two wire With mic Low profile Clips to shirt or jacket M3 Connector for EF Johnson/Motorola radio