Pantech U4000 Unlocked Phone with Camera, International 3G, MP3/Video Player, and MicroSD Slot-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 2100 UMTS plus GPRS/EDGE capabilities 1.3-megapixel digital camera with video capture; digital audio player Bluetooth for handsfree devices; MicroSD memory expansion; organizer Bluetooth Support 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.