Samsung E356 Unlocked Phone with Camera--U.S. 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. U.S. tri-band GSM cell phone compatible with 850/1800/1900 frequencies and GPRS capabilities Slim slider phone; VGA camera with 2x digital zoom; SMS and MMS messaging capability; organizer Up to 6 hours of talk time, up to 250 hours (10+ days) of standby time