https://phys.org/news/2019-02-echo-doorbell-tv-comfortable-amazon.html

Your guests are greeted at the door with a video doorbell from Ring, a company Amazon bought in 2018. They enter a living room where an Amazon Echo speaker plays music as it waits for voice commands.

Then they head to the kitchen, where an Amazon microwave heats up dinner—made from food bought at Amazon-owned Whole Foods, naturally—as you turn down the volume on the Amazon Fire TV Edition television.