https://www.cnet.com/news/moen-invites-alexa-and-siri-into-your-shower-at-ces-2018/

Your digital assistant will soon be able to help out with your morning routine. At CES 2018, Moen announced its U by Moen Smart Shower is adding support for both Amazon's Alexa and Siri, the latter via Apple's HomeKit, in the first half of 2018. Say the word, and your shower will heat up to your ideal temp before you even enter your bathroom.

You might think a voice-controlled shower is entirely unnecessary. I felt the same way about the app-controlled U by Moen Smart Shower, but the convenience grew on me as I tested it. You can customize presets for different users in the app, then start your shower remotely and it'll pause and notify you once the water's at your desired temp. You can program the water to turn off after a certain length of time if you need to hurry along any household teenagers. And now, you can activate your presets and start your shower with a voice command.