Sony Ericsson Walkman W580 Unlocked GSM Phone with 2MP Camera, Video, Bluetooth and FM Radio - White 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. Quad-band GSM cell phone compatible with 850/900/1800/1900 frequencies and GPRS/EDGE capabilities Walkman 2.0 Media Player with one-touch music shuffle and dedicated music control keys on the front; integrated FM radio 2-megapixel camera/camcorder; Memory Stick Micro expansion (up to 2 GB); Bluetooth stereo music streaming; access to personal email; web browser Up to 9 hours of talk time, up to 370 hours (15.4 days) of standby time