They have a couple of pretty good shots of the controller, and I don't see a wire. Also, the marketing image they include for the controller is clearly labeled as wireless.
I think by "the article" they mean the one linked at the top of this subthread, which is about the Navy and shows a sailor using a wired Xbox 360 controller.
The one used on the missing submersible does use Bluetooth.
They have a couple of pretty good shots of the controller, and I don't see a wire. Also, the marketing image they include for the controller is clearly labeled as wireless.
I think by "the article" they mean the one linked at the top of this subthread, which is about the Navy and shows a sailor using a wired Xbox 360 controller.
The one used on the missing submersible does use Bluetooth.
I have the controller itself and as far as I know there's no way to use it wired. It doesn't even have a port, batteries are replaceable double As.