Amazon Echo is finally in Best Buy

No one knows how many Amazon Echo devices Amazon has sold, but the number is almost certain to grow now that Amazon is finally selling the always-listening "digital assistant" device in Best Buy, along with other retail outlets. SEE ALSO: 'Alexa, how lazy have I been today?' Amazon Echo now works with Fitbit Amazon Echo, which has been a surprise hit for the Seattle-based online sales giant, is an all-black, intelligent speaker that includes Amazon's Alexa digital assistant. The device's sensitive microphone array means that you can say "Alexa" from anywhere in the room and Echo will come to life and listen for a command or query. It's cloud-based, so Echo and Alexa tap into your Amazon account's content (music, books) as well as weather, news sources and more. In fact, Amazon is constantly adding new services (like the ability to control smart home devices like lights).