This is an extremely cheap portable game console playing NES and other games. The model number is SY-888. It has 288 built in games, but there are repeats, so there should be about 50+ unique ones.
I think this is the cheapest game console with color screen. And for it’s price, this is really awesome despite it has some irritating problems.
If you are a gadget lover, a collector or like NES or Famicom games, I recommend to buy it.