I bought this phone primarily for use in the USA, but also intended to use it overseas. The phone shipped with an A/C to D/C charger that is not compatible with US power outlets. The pins are round, and are probably designed for use in Europe. There is no adapter included for use in the USA. In other words, I cannot perform the initial charge of the battery, and cannot use the phone in the USA (unless I buy an adapter separately).I called Amazon customer support, and I was told that this item is not sold by Amazon, and that I''d need to call Samsung. I called Samsung, and I was told that this is an "international" phone, and that the number I called was only for Samsung USA support. They advised me to call Amazon back. In other words, I appear to be in an endless loop.Nothing in the product description indicates this phone is "international" or not intended for use in the USA. As a matter of fact, the product description states: "This Unlocked Dual SIM Cell Phone is compatible with GSM carriers like AT&T and T-Mobile ...." and "US Warranty". Now, I understand that these statements do not preclude the possibility that this is an "international" phone that can also be used in the USA. However, the product description appears to be, at least to me, misleading.Sadly, I will be returning this phone, and I will probably go into a store to buy a phone. Too bad, as I''ve generally had very good buying experiences with Amazon.[UPDATE (8/14/2013): I decided to give this phone a try, and bought an adapter. After initial-charging the battery, I turned it on to discover the menu is in Greek. I mean, literally in Greek. Thankfully I have neighbors who are of Greek origin, and they were able to navigate the menu to set it up in English. The phone menu is fairly intuitive and easy to use. However, when I tried to set up the SIM card on my network (AT&T), the phone would not connect with the network. The AT&T customer service agent called Samsung, who told him that the phone is an international phone, and support can only be provided from Samsung''s help center in Jordan, which is on a completely different time zone than mine. Even if they resolve my problem in the US, I have no assurance that the same problem will not develop when I am overseas. Bottom line: I am returning the phone today, and I am reminded of the well-worn idiom - caveat emptor (buyer beware).][UPDATE (8/30/2013): Manticore pointed out that the problem may have originated from the seller, and not the phone itself. I believe my phone order was fulfilled by Mobile Best Sellers, not Zezoo Store (as the Amazon site currently shows). My complaints, then, are directed at Amazon and not at the phone itself - Amazon''s site ought to have indicated that the phone as purchased from Mobile Best Sellers would have specific features, some of which may not be universally acceptable.Thanks to Manticore for pointing out my error.]