Sony Ericsson Z500a Unlocked Cell Phone with Camera-U.S. Version with Warranty (Lagoon) 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 Clamshell phone with dual screens; VGA digital camera with video capture Speakerphone; organizer; access to personal email; 6 MB internal memory (no expansion) Up to 10 hours of talk time and 260 hours of standby