I suppose in theory you could have a device which doesn't have the storage or bandwidth to record/transmit full audio, but does some heuristics on the device and then transmits a small payload of flags. But in any case I wouldn't want to stay anywhere with an unaccountable black box ready to unfalsifiably charge me

The other commenter is absolutely right that partyers in AirBnBs cause nuisances for local residents, but the owners will have to find another way to sort that out or close up shop