To use a wireless microphone headset with the Bose S1 Pro+, you can consider using a wireless transmitter that is compatible with the S1 Pro+. Bose offers a wireless mic/line transmitter that connects to the S1 Pro+ via its integrated ports. However, this transmitter is designed for handheld microphones and does not specifically support headsets. For a headset, you might need a third-party wireless system that can connect to the S1 Pro+ via its audio inputs. Ensure the wireless system is compatible with the S1 Pro+'s audio inputs and settings.

For a more tailored solution, you could explore third-party wireless microphone systems designed for headsets, such as those from brands like Shure or Sennheiser, which can be connected to the S1 Pro+ using its audio inputs.