Sony Ericsson M600i Unlocked Cell Phone with 3G, MP3/Video Player, Memory Stick Micro Slot-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. Unlocked tri-band GSM 900/1800/1900 cell phone with International 3G compatibility (2100 UMTS) and GPRS data capabilities Symbian OS smartphone with dual-function QWERTY/numeric keypad; 2.6-inch touchscreen; included stylus Digital audio player; Memory Stick Micro expansion; 60 MB internal memory; Bluetooth stereo music; access to personal email Up to 7.5 hours of digital talk time and 340 hours of standby time