Roku bought a Sonos-like company focused on multi-room audio
 

You've probably never heard of Dynastrom, but Roku has. The streaming player company acquired Dyanstrom last month, a Danish firm building multi-room audio software, Variety reports. The news follows an earlier report from the outlet in September, wh...

https://www.engadget.com/2017/11/10/...anstrom-audio/