The Wii U Pro Controller will last for "up to 80 hours on a single charge," according to the apparently official product description seen on Amazon and GameStop, as spotted by Nintendo Life.

The blurb also notes the controller is only compatible with the Wii U; it cannot be used to play Wii games on a Wii U or Wii, so don't get rid of your Classic Controller Pro.

"The Wii U Pro Controller features the dual analog sticks and ergonomic button layout that you've come to expect," says the description, "as well as a rechargeable battery that can last up to 80 hours on a single charge." It's unclear if this information is coming from Nintendo; the company has not made any such announcement about the Pro Controller. For reference, Nintendo revealed during E3 that the Wii U GamePad will offer 3 to 5 hours of battery life.

We've reached out to Nintendo to confirm whether the Pro Controller battery life figure is official, and will update this post if we hear back.

Update: A Nintendo representative told Polygon over email, "Nintendo did confirm that the 80-hour battery life on the Wii U Pro Controller, as referenced in the product description on Amazon, is correct."