Sony Ericsson W995a Walkman Unlocked Phone with 3G, 8.1 MP, WiFi, Stereo Bluetooth, and Assisted GPS-U.S. Version with Warranty (Progressive 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 quad-band GSM cell phone compatible with 850/900/1800/1900 frequencies Slider phone with 8.1-megapixel camera/camcorder; Wi-Fi networking; GPS for location and geo-tagging; Bluetooth music streaming; Walkman 3.0 digital media player Up to 9 hours of GSM talk time (4 hours on 3G networks), up to 370 hours (15+ days) of standby time What's in the Box: handset, battery, charger, 8 GB Memory Stick Micro (M2) card, wired handsfree headset, USB cable, Sony software