“What would it mean for your business if you could target potential clients who are actively discussing their need for your services in their day-to-day conversations? No, it's not a Black Mirror episode—it's Voice Data, and CMG has the capabilities to use it to your business advantage.”
All you need is a list of advertising keywords. Have the device treat those like wake words just like Alexa and then target ads to the device based on which words it heard most often.
This is but the most simple version, it’s easy to elaborate from there.
You do understand how incredibly difficult this is right?