Nokia 2660 Unlocked Cell Phone with Bluetooth - US Warranty - Black/Silver 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. Dual-band GSM cell phone compatible with 850/1900 frequencies and GPRS capabilities Bluetooth for handsfree communication; speakerphone FM radio; SMS/MMS/Nokia Xpress messaging; access to personal email Up to 7 hours of talk time, up to 350 hours (14+ days) of standby time