Samsung D830 Unlocked Cell Phone with 2 MP Camera, MP3/Video Player, MicroSD Slot--International Version with No 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. Tri-band GSM cell phone compatible with 900/1800/1900 frequencies and GPRS/EDGE capabilities Ultra-thin clamshell design; 2-megapixel camera with built-in flash and auto-focus Bluetooth stereo music; MicroSD memory expansion; organizer; access to personal email; document viewer Up to 2.5 hours of talk time, up to 210 hours (8+ days) of standby time