Those are for calls. They need a microphone, you cannot do calls without that. I'd argue that those (should not) transmit audio data to any random company, but

Those are for calls. They need a microphone, you cannot do calls without that. I'd argue that those (should not) transmit audio data to any random company, but then I've never understood what Google Now/Google Assist or whatever it's called nor what Siri is about..