https://finance.yahoo.com/news/rejoice-sonos-speakers-finally-voice-controllable-163908915.html > overtook Sonos in sales last year (5 million sold vs. 4 million) for one key reason: The Echo lets you ask for music by voice. “Alexa: Play ‘The White Album.’” “Alexa, play some cooking music.” “Alexa—play ‘Mr. Blue Sky.’”" data-reactid="25">Well, fine—until the Amazon Echo came out. The Echo sounds flat and tinny compared to a Sonos speaker, but it overtook Sonos in sales last year (5 million sold vs. 4 million) for one key reason: The Echo lets you ask for music by voice. “Alexa: Play ‘The White Album.’” “Alexa, play some cooking music.” “Alexa—play ‘Mr. Blue Sky.’” > This is what’s known as a killer app, people. It feels like “Star Trek,” like “The Jetsons,” like magic. You come home, you throw your keys in the bowl, you say, “Play some classical music,” and there it is.