OK so I know Anker is not dumb so the fact I cannot see a point in this makes me think I'm missing something, I'm not understanding.
You can get Google Assistant on your phone, you'd not leave home in a car without a phone. So you got Google Assistant with you in your car already. If your car has BT (newer cars do) then the phone is tied to speakers and mic of the car. Your phone will be likely connected (cradle, wired, wireless) to the 12V DC socket most of the time anyway. Phones are now so big you'd not sit with the phone in your pocket.
So what exactly can you do with this Roav you can't already do just equally as well?
Also, what prevents every "ok Google" device in the vehicle responding? Imagine you got a passenger and two Google Assistance operating phones, you'd get three devices responding?
I am obviously missing something here so please don't be worried I can be insulted by simple explanations.
I'm not wanting to be critical, I'm wanting to learn. Love tech.