Chromecast Audio competes with Sonos for a tenth of the price
 

The Chromecast Audio is pretty smart. Here's the elevator pitch: You plug the little hockey puck in the image above into a power outlet, and then connect it to your speakers using either the provided 3.5mm-to-3.5mm cable, or a third-party 3.5mm-to-...

http://www.engadget.com/2015/09/29/c...udio-hands-on/