After a few days I can say that this test tablet is a great price / quality ratio
Very good:
True quad-core (tested with cpu-z)
Very reactive and after android settings seems to work perfectly
Lightweight
Unlocked root
No overcoat manufacturer!
Middle:
Sound OK, a little weak, not checked with headphones
Average but decent screen resolution (1024x600)
Low battery life (3 / 4h) or less depending on the game (autonomy even decreasing load on a computer USB plug, with the AC adapter that's better!)
Wifi sensitive side (tends to disconnect if the network is loaded on the channel used by the internet box)
Bad:
Not a 1.6Ghz but A7 A8 1.2Ghz!
It seems no bluetooth
Great price and pleasantly surprised => -1 * 5 * for false description
So I've ordered a 2nd to offer!
