You could look into using esp32’s for it. There’s variants with copper ethernet and people have used them before to both act as voice assistant mics and to play back audio with Home Assistant. Real time stream audio reproduction might be too much for them but it’s worth a spelunk if anyone has already gotten close enough.
Picked up a “Electrolux Pure D8.2 Silence PD82-Animal” model last year and it’s been pretty awesome. If you check the tech specs the noise level is really low (and actually delivers on the promise) but still has a much higher suction force than anything I’ve had before. The rotating hair removal accessory is crap though (not powered so just not comparable to a model that is), so no need for the animal version if price for other versions is better. Seems to still be on the market but stock limited as everything these days.