The speaker maker is taking on competitors, combining offerings from Tune-In and iHeartRadio with its own stations, which have the added bonus of being curated by famous names like Thom Yorke and David Byrne. All the offerings are free, but there's a big catch, as outlined by Digital Trends:

"If it sounds like Sonos Radio has a lot in common with radio-like features from Apple Music (think Beats 1) and Spotify (Discover Weekly), you’re right. However, there are two big differences at launch. First, Sonos Radio only works when you’re listening to a Sonos system. Just like the Sonos app can’t be used to access its hundreds of other music sources when you’re away from home, Sonos Radio is tethered to your Sonos wireless music speakers.

"Second, all Sonos Radio streams are limited to just 128 kbps. For those who don’t pay much attention to digital audio bitrates, this is a low-bandwidth stream that will not sound as good as streaming from sources like Apple Music, Spotify Premium, or Tidal, or even your private collection of songs."

So maybe not such a big deal, after all. 

Sonos Radio Launches in Canada: Free Curated Streaming Radio and More