AppleInsider:

Announced at CES on Sunday, the latest iteration of the U system integrates voice control through Apple’s Siri and Amazon’s Alexa virtual assistants. Alexa compatibility arrives in the first quarter as a third-party extension, while Siri and HomeKit will see integration in quarter two.

Moen showed off U in a demonstration, explaining that users simply ask the assistant of their choosing (Alexa on the show floor) to turn on the shower head or set a desired temperature. Water begins to flow from the outlet until a desired temperature is reached, then the system pauses, waiting for a user to enter.

I really like the idea of walking in the bathroom, telling Siri to set the shower temp to my preference, then having Siri let me know when the shower is ready for me.