Sony Ericsson K790a Phone (Unlocked) This unlocked cell phone is compatible with GSM carriers like AT&T and T-Mobile. Not all carrier features may be supported. It will not work with CDMA carriers like Verizon Wireless, Alltel and Sprint. U.S. version tri-band GSM cell phone compatible with 850/1800/1900 frequencies and GPRS/EDGE capabilities 3.2 Cybershot megapixel camera with autofocus and 16x digital zoom; video capture capabilities; Memory Stick Micro (M2) expansion Blueooth stereo music; digital audio player with FM radio; access to personal email and instant messaging Up to 7 hours of digital talk time and 350 hours of standby time