QJO Q100 Cell Phone Unlocked For Domestic/International use, GSM Dual-Sim QuadBand,Bluetooth, FM Radio and Camera (WHITE) Retail Packaging GSM Quadband, Unlocked Dual Sim 850/900/1800/1900 1.8-Inch LCD Display, Camera, Bluetooth, GPRS VGA Camera with Flash Built-in FM Antenna, MP3 Player, MP4 Player Unlocked cell phones are compatible with GSM carriers such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint. 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.