To me it's pretty clearly the same targeted advertising available anywhere with the extra claim of using "voice data". It doesn't say what the voice data is or

To me it's pretty clearly the same targeted advertising available anywhere with the extra claim of using "voice data". It doesn't say what the voice data is or where it comes from. They could say that when people do google searches using Siri/OkGoogle/the microphone option on Google - it's information they would use in an anonymized way to target ads, or rather Google does on your behalf, and it's technically a derivative of voice data.