Link to the device at Alibaba?
But it is very small and I think that along with save states and standby helps it be more of a pick up and play toy for short bursts, more so than my 3DS or vita.
https://wiki.gbatemp.net/wiki/List_of_3DS_homebrew_emulators
It looks like a very thin GBC with four buttons instead of two and two shoulder buttons, if that helps.