A little bit more written informations about the product could be nice. I had to guess it was 5v powered through jack. Regarding the product by itself you got what you paid for. Ok quality that works but seems a bit weak somehow, only time will tell. I would have appreciated to have a bit of wire attach to the jack plug. I don't mind that there is no 220v to 5v provide with the screen but it was a pain to solder something acceptable to connect it to my 12v to 5v converter.
Did not received the item. After 2 months of waiting the item was still in China.