Sony Ericsson W300i Unlocked Cell Phone with MP3/Video Player, Memory Stick Micro Slot-International Version with Warranty (Shadow 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 GPRS/EDGE capabilities Walkman music player and styling--supports MP3 and AAC digital audio files and includes FM radio VGA camera, Memory Stick Micro expansion, USB connectivity, Bluetooth for handsfree devices Up to 9 hours of digital talk time and 400 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.