Review on 🔌 Wireless WiFi & Bluetooth 5.0 Audio Receiver Module - Multiroom/Multizone Home Stereo Music Receiver with Airplay, Spotify Connect, Remote Control - Ideal for DIY Speakers (Up2stream S10) by Jake Solorzano

I've tried 2 other products that claim similar performance but this is the only one that works in a multi-room environment. All other fakes fail, and only this one allows using Ethernet on multiple devices, which improves stability. It might be a bit more expensive, but compared to the $425 Sonos port, this is a winner. I have bought several of these and have not been disappointed. Update... still works fine!