[robotfelix]

It's worth noting that product is listed in the "Discontinued Products" section of the linked wiki.

Both of the ReSpeaker products in the non-discontinued section (ReSpeaker Lite, ReSpeaker 2-Mics Pi HAT) have only 2 mics, so it appears that things are converging in that direction.

[alias_neo]

The S3-Box-3 also only has two mics, and I found I can talk to that from another room of the house and it detects what I said perfectly fine.