Didn't realized they stopped making them... love the devices myself, have two as well as a couple chromecasts, and a couple nvidia shield tv devices. Only thing missing is a nice home media server interface for them, but I haven't looked in a while, someone may have one or more now.

70% of the time, I'm on the shield playing video from my nas in kodi... most of the rest, casting to audio + speakers in the bedroom with rain/storm sounds.

They still work great though! you can’t buy more from google but they are on eBay and craigslist etc