Amazon Echo now streams Spotify and SiriusXM to multiple rooms
 

Amazon brought multiroom audio support to its Echo speakers a few months ago, but let's face it: unless you're a big fan of Amazon Music Unlimited, it hasn't been very useful for on-demand streaming. That changes today. As promised, Amazon has added...

https://www.engadget.com/2017/12/13/...-and-siriusxm/