Do you really have 0 microphones in your house? What about speakers, those are basically microphones too? If you have access to the main OS it's also relativel

Do you really have 0 microphones in your house? What about speakers, those are basically microphones too? If you have access to the main OS it's also relatively easy to verify that the secretly recorded audio data isn't being uploaded anywhere, unless these devices have some secret radio equipment in them.