Google has been an active voice assistant for the home - a small cylindrical creation to take up the fight with Amazon Echo.
In the home, you may not always go around with the cell phone in his pocket, and even if you do, it is particularly well suited as a voice assistant with his tiny speakers and weak microphone.
Better then to an always active base station with speakers and several microphones.
That's what Amazon was thinking, and developed the Echo, and what Google has envisioned when the company now presents the Google Home.
Google Home is a small cylinder you can place on the kitchen counter, for example, and then faithfully wait for you to say Ok, Google and ask something.
You will be able to do the same things you can do with a mobile phone, as controlling music playback and various smart home products, search the web, set alarms and timers, and add things on the shopping list.