hi sir.please I'm interested in this item. I will need it for market self check out n pay. so I have few question.1. dose it have exnt barcode scanner!? tell details.2. it accept both cash n credit ?? Saudi Riyal! ?how much per 1 pc. if I want to get 6 pc!?maybe later I get more.send me with a pdf file full specifications n details.regardsAlrubaie