Shut off controller option when holding down the Xbox button would be useful.

Or I believe press and hold the power button on the controller and theres an option to press the menu button (I think) to turn it on/off in the shut down menu.

Or if you press and hold the Xbox button on the controller and bring up the shut down screen there should be the option to hit either the Menu or View button displayed in small text to switch the feature on or off.

Hi

Press and hold the Xbox button on the controller to bring up the console shut down menu and press the menu button on the controller and hopefully it will turn of narrator.

Alternatively using the guide on the left go into the main settings page and use the option of Ease of Access at the bottom of the list to find where to turn it off.

Hi

It sounds like you may have by accident turned the narrator on please press and hold down the the Xbox button on the controller to bring up the console shut down menu and there will hopefully be the option listed in small text at the bottom to press the
menu button to turn this feature on/off.

You should also be able to turn the feature off by holding the Xbox button on the controller to bring up the shut down screen and then just press the Menu button on the controller.