Google voice search records and keeps conversations people have around their phones –

[Mystic Wanderer]

Good information to know, especially how to delete it.  

I use a desktop to get online for this very reason; no camera and no microphone.  The only time I've used voice recording with my phone is to say the name of a person I wish to call.  If my phone is recording what I'm saying, other than the name, it's probably frowning as it has to listen to some very off-key singing to myself while driving.     Yes, I need to go delete that.