https://www.techradar.com/news/amazon-buys-ring-in-another-move-to-get-into-your-house

Amazon has bought Ring, a smart home tech company that makes video doorbells and other security devices. The acquisition, first reported by GeekWire, gives Amazon yet another way into your house. 

The terms of the agreement haven't yet been disclosed, though reports pin the acquisition price at more than $1 billion. As when it bought Twitch in 2014, Amazon is expected to keep Ring running as-is, meaning the brand and its products are sticking around. Amazon will, however, integrate Ring's technologies into other products and services where it makes sense.