MWg Zinc II Unlocked Phone with 2 MP Camera, Windows Mobile 6.1, Wi-Fi, GPS, and MicroSD-International Version with No 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. Quad-band GSM cell phone compatible with 850/900/1800/1900 frequencies and US/International 3G compatibility via 850/1900/2100 UMTS/HSDPA plus GPRS/EDGE capabilities Smartphone with Windows Mobile 6.1 operating system; 2.8-inch touchscreen; slide-out full QWERTY keyboard GPS for navigation; Wi-Fi networking (802.11b/g); 2-megapixel camera/camcorder; Bluetooth for handsfree devices; MicroSD memory expansion Up to 5 hours of talk time, up to 250 hours (10+ days) of standby time This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.