"Your games, your way. However you think of your gaming style - hardcore, old school, or purely nostalgic - the Wii U Pro Controller puts you in the game," reads the official description for the controller.
"Designed for accessibility and extended gameplay comfort, the Wii U Pro Controller features the dual analog sticks and ergonomic button layout that you've come to expect, as well as a rechargeable battery that can last up to 80 hours on a single charge.
"The Wii U Pro Controller can be used for playing a variety of games - from packaged games at retail to downloadable games from the Nintendo eShop. Look on the back of Wii U game packaging to see which games use the Wii U Pro Controller. Not compatible with the Wii system or games."
By comparison a fully charged Wii U GamePad will last for 3-5 hours, according to comments made by Nintendo of Japan in June. The Xbox 360 controller battery lasts for roughly 25 hours, while the PS3 pad has about 20 hours worth of charge time in it.
Nintendo hasn't confirmed if the Pro Controller figure is accurate, but we've contacted the company for clarification.
Ubisoft's Michel Ancel, who is developing Rayman Legends for Wii U, said this week that the Wii U GamePad has no latency issues.