IcomÃ‚Â·In-earÃ‚Â·WiredÃ‚Â·With microphone ICOM tube headset M85 with 2.5mm plug is brand new. ICOM tube headset with 2.5mm plug, M85 tube headset with 2.5mm plug, MFG#SP-26, can be used with the HM-163MC lapel microphone on the M85 handheld VHF.