Perhaps the only way that the Plaintiffs are able to include the concussion warning label on their Exhibit List is to argue that it should be admitted to prove the feasibility of precautionary measures.
The nunchuck-esque controllers we saw at CES didn't make it in the FCC's label location outline (seen above), but an attached accessory list makes note of a Razer-branded controller, powered by a 2800mAh battery, hinting that this prototype's gamepads might well be independent or detachable.