For instance today if you have a Philips hue lights and a windows phone, you pick your phone, screen is off, you press the search button, and says "huestro, set my lights to ..."
Hopefully you'll be able to say that directly from your Xbox one microphone.
But this article is spot on, that's a reason Philips released the pricey "hue tap", a switch that frees you from using a smartphone