WiiM Pro review: The Chromecast Audio Ultra we never got

Add all kinds of streaming smarts to your dumb speakers
If you're looking to add streaming capabilities to your basic audio setups, the WiiM Pro is an easy-to-use option that integrates into most smart home setups.

WiiM's Mini and Pro are the Chromecast Audio's real replacement - The Verge

Streaming music player and digital preamp with Wi-Fi®, Chromecast built-in, Apple AirPlay® 2, and Bluetooth®

WiiM Pro

Get Streaming with WiiM, NAD, and Cambridge Audio

WiiM Mini music streamer review: Audiophile quality for just $99

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WiiM pro plus AirPlay2 Receiver, Chromecast Audio, WiFi Multiroom Stre – EgoldenPlay

Inputs, Outputs, Controls, and Functions on Your WIIM PRO PLUS Explained

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WiiM Pro Plus DAC