Samsung M600 Unlocked Cell Phone with Camera--International 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. Tri-band GSM cell phone compatible with 900/1800/1900 frequencies and GPRS capabilities Entry-level slider phone; VGA camera/camcorder Speakerphone; 1.5 MB memory (no expansion); organizer; FM radio Up to 2.5 hours of talk time, up to 230 hours (9+ days) of standby time