Amazon Echo multi-room Spotify and SiriusXM shaves Sonos advantage

Back in August, Amazon rolled out a new multi-room feature for Echo devices. This feature allows you to utilize individual Echo devices in your collection, defining groups of speakers and commanding Alexa to play music through only the speakers in that group. Today, that functionality is rolling out to Spotify and SiriusXM subscribers. Therefore, if you use Spotify or SiriusXM …