Box of a chinese device not having an accurate description? Impossibru!
The seller of mine seems to be fairly talkative, hoping to get some info, though I'm not holding my breath - I mean, you load the roms onto the tf card, and the device needs to see them, if that doesn't work, there is not much else that can be tried.
Almost forgot, the screen is ok, seeing the viewing angles, I'm fairly sure it's ips. GBA games play nice, and you can use Goomba to play GB/GBC games, so the console isn't completely useless. Still, for some $12 more, you can have the BittBoy, which is worlds apart.