http://www.ebay.com/itm/Brook-NinCade-PS4-Wii-Remote-ect-Wireless-Controller-for-to-Nes-Classic-Mini-/162486122146?hash=item25d4ed76a2%3Ag%3AUSIAAOSwSypY-3n4
That's the official sellers eBay listing
https://m.youtube.com/watch?v=EsnGlMUtfMo
Here's a video review
These internally installed adapter boards will fully update your NES or Famicom mini for Bluetooth, so no more need for those expensive 8Bitdo controllers.
Sounds interesting - but are wired controllers really that unacceptable? :D
I quite like them. Did you order a kit yourself? I may get one for my FC Mini.
That's where it's truly useful, the Famicom Mini since it has built in controllers. I plan on buying it because that would be awesome to use Wii-motes! Lol