How to stop a response from the Conversation Agent

or DIY

The quality of the microphones will be roughly identical, as the same DSP is used.

If you’re ready to experiment, you can try the XMOS XVF3800. ReSpeaker XMOS XVF3800 ESPHome integration

You can also use speakerphone. There is already a project for Linux systems that implements all the features available on esp32. However, there is no ready-made add-on yet, so you will have to install everything yourself.