The listing, Nintendo 500-in-1 Games plug and play (Not Nintendo Classic) has ended.
This is a third party console. Not a Nintendo Classic or retro NES.
Has 500 Nintendo games, but many are public domain games, hacks, or repeated more than once in the list. You cannot add new games.
May run a bit faster than the real deal. May not work on 4k televisions according to manual. Tested on an older flat screen only.
Comes with adapter, two controllers, a/v cable, and a/c adapter. Also a not very useful manual in broken English.
Controllers have turbo buttons and use NES style plugs, but I haven't tried them on my NES. May work.
Tested once. Played 20 games or so. All loaded fine.
Let me know if there are questions.