Nokia N78 Unlocked Phone with 3.2 MP Camera, 3G, Wi-Fi, GPS, MP3/Video Player, and MicroSD Slot-U.S. Version with Warranty (Black) 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. Quad-band GSM cell phone compatible with 850/900/1800/1900 frequencies and US 3G compatibility via 850/1900 HSDPA plus EDGE capabilities 3.2-megapixel digital camera with Carl Zeiss Optics, autofocus, digital zoom; high-quality video capture (640 x 480 pixels at 15 fps) Wi-Fi networking (802.11b/g); GPS mapping; Bluetooth for handsfree devices; MicroSD memory expansion; FM radio Up to 4.3 hours of talk time, up to 320 hours (13+ days) of standby time