Bough one of these in the UK and returned it.
Image quality is poor
The interface was etremely lagging taking several seconds to respond to any input.
The worst thing about the device is that there is no way to fully turn it off which means that the battery is in a constant state of discharge.
What's even worse than that is if you mis place the controller or it stops working, there is no way to control the device or even switch the pinut.
The seller who I bought it from agreed that it was a very poor design.
Waste of money and a very poor peice of kit.
Do not buy, you have been warned.