Google Chromecast Audio Update Brings Multi-Room Feature and Hi-Res Audio Support | Technology News
Instructions: Set up multi-room audio with Google Home and Chromecast | Tutonaut.de
Review: Chromecast Audio | Stuff.co.nz
Google's Chromecast adds high-res audio, multi-room play | HT Tech
How to use Chromecast Audio multi-room group playback? - All About Chromecast
Onkyo Wireless multi-room Speaker Dual-band Bluetooth Chromecast Audio System | eBay
Amazon.co.jp: WiiM Pro AirPlay 2 Receiver, Chromecast Audio, WiFi Multiroom Streamer, Alexa, Siri, Google Assistant, Stream high-resolution audio such as Spotify, Amazon Music, Tidal, and more : Electronics