Sony Ericsson K800i Unlocked Cell Phone with 3.2 MP Camera, 3G, Media Player, M2 Memory Slot-International Version with Warranty (Velvet 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 tri-band GSM cell phone compatible with 900/1800/1900 frequencies and International 3G compatibility via 2100 UMTS plus EDGE capabilities 3.2-megapixel Cyber-shot camera and xenon flash protected by a sliding cover; Memory Stick Micro expansion Bluetooth stereo music streaming; digital audio player; FM radio; personal email access; voice dialing capabilities Up to 7 hours of digital talk time and 350 hours 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.