OEM BDN6676B: Black Audio Adapter 3.5mm jack with PTT(push to talk) switch is on the adapter.

• Adapts your radio's multi-pin audio accessory connector to single Visar connector
• Directly replaces OEM brand audio accessory adapters
• Made of durable high-impact polycarbonate and rubber
• Locks to the radio using a mounting screw
• Rubber gasket seals and protects the microphone connector when no audio accessory is in use

  Audio accessory adapter for headset with Motorola Visar pin plug
  Adapter  compatible with the following Motorola and Johnson radio:
  MOTOROLA
  GP900, GP9000, HT1000, JT1000, MT2000, MTS2000
  MTX838, MTX900, MTX960, MTX1000, MTX8000, MTX9000, MTX-LS
  XTS2000, XTS2500, XTS3000 Astro, XTS3500, XTS5000