How To Use AirPort Express As AirPlay 2 Adapter With Any Speaker System, Redmond Pie

AirPort Express with Bluetooth Transmitter Enables AirPlay 2 on Any Bluetooth Speaker : r/HomeKit

Add AirPlay to Your Classic Stereo with an Old Apple TV - TidBITS

Belkin To Offer AirPlay 2 And HomeKit Connectivity Via A Small Adapter

Turn Any Speaker into AirPlay 2 Speaker (Belkin Soundform Connect)

Airplay and Apple Airport Express Connection - Vanatoo

TIL you can plug in AirPort Express directly to an outlet using the small 2 prong ac plug from MacBook chargers. : r/HomeKit

AirPort Express firmware update adds AirPlay 2 and Home app support - 9to5Mac

Using Apple AirPort Express Wi-Fi base station for AirPlay 2 with analog or optical audio to stereo

Apple Airport Express A1392 MC414B/A WiFi Router AirPlay 2 - BRAND NEW SEALED 885909462612