If you look a similar product at amazon, you can find lots of alternatives.
Works great with my 20 year old JVC shelf stereo that sounds better than any smart speaker (I have three of those too). I can say to my phone "ok google play (whatever) in the kitchen" and it does it.
Google should let another company resell this and let them market it better.
A great product for wirelessly connecting my Spotify playlist to my 80s ghetto blaster. Nothing beats 80s sound through 80s speakers.
Never understood why it existed in the first place when you can do the same and video as well with a regular chromecast