Amazon has put up several listings for the Retro-Bit Wii U/Wii/NES Classic Edition Wired Classic Controller, revealing several details and images. If you are interested, you can purchase the two available color options with the following links: Black Version and White Version. You can also check out what both gamepads look like with the images located just below this paragraph (additional photos can be viewed on the aforementioned listings).
Furthermore, you can take a look at the product description, as well as a list of features, for the classic controller below (via Amazon):
Ergonomically designed for comfort with a classic gaming feel! The Retro-Bit Classic Controller plugs directly into the NES Classic and Wii/Wii U console with a 6 foot cable to play almost anywhere in the room. Accompanied with a four way D-pad, twin analog sticks, four shoulder and face buttons to take your game to the next level!
- Ergonomic design with added grip
- Twin analog sticks
- Four face buttons (X, Y, B, A)
- 6ft Cable
- Compatible with NES Classic/Wii/Wii U
So, if you are looking for a new controller for your Wii U, Wii and/or NES Classic Edition, then you might want to take a look at the Retro-Bit Wired Classic Controller.