HTC Touch Diamond Unlocked Phone with 3.2 MP Camera, MP3/Video Player, and Windows Mobile 6.1-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. Tri-band GSM cell phone compatible with 900/1800/1900 frequencies and International 3G compatibility via 900/2100 HSDPA plus GPRS/EDGE capabilities Windows Mobile 6.1 with TouchFLO 3D interface responds perfectly to your finger gestures when scrolling through contacts, browsing the web, and launching media 3.2-megapixel camera/camcorder; 4 GB of internal memory; Wi-Fi networking (802.11b/g); Bluetooth 2.0 connectivity for handsfree communication and stereo music; GPS mapping and directions Up to 5.5 hours of talk time, up to 285 hours (11+ 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.