The Xbox 360 had one and now the Xbox One will too. Today, Microsoft announced the Xbox Chatpad for the Xbox One. It fits in the same place on the Xbox One controller as it did on the Xbox 360 controller.
It will retail for $34.99 and can be pre-ordered right now. Launching on November 3, 2015, the Chatpad will allow for easier entry of text and codes. There are two programmable keys so you can tie them to a command that will suite your needs. Voice chat buttons are also easily accessible from the pad as well.
The Chatpad will also be backlit for those who like to game in the dark.
Finally, a single ear headset will also be included and will plug right into the Chatpad itself.