The 1692 Bluetooth PTT pod can be paired with the radio via Bluetooth and adapts headsets to the radio. You can use either a wired or Bluetooth headset through this button to the radio. Then you press the button on the PTT as though it was the button on the radio. That way you can put the radio in your pocket and use the PTT button and a headset and never have to touch the radio. The PTT button isn’t water resistant so you’d have to keep it under your jacket in the rain, but the button (arrow) is huge and easy to push through all but the heaviest jackets.