I purchased an unlocked Dual Sim card Cellphone from Tradetang on December 1st, 2010. When I received product, neither AT&T nor T Mobile Sim Cards fit into sim card holders AND there was no maunals for product available. I cannot use the phone and my endless e-mails are met with "try another sim card", or try to contact seller, which I have and they keep sending me e-mails that are just delaying the inevitable that they indeed, do not have an instruction manual, and the sim cards that may fit are not either of the two US possibilities that are CDMA compliant. A RIP OFF-DO NOT BUY FROM Tradetang.com read full review »