The PG-1310 is in a stylish body with clamshell design and internal antenna, and operates in tri-band GSM networks (850/900/1800MHz) making it suitable for use in the US. There is no sign suggesting any US carrier, but earlier FCC images have shown
Pantech phones with Cingular branding (PG-C300 and PG-C120). The PG-1310 has a low-resolution 1.3 megapixel camera and dual color displays – 262k color TFT internal and 65k color STN external one and support for MP3 music playback. Its memory can be expanded via microSD cards.if you cannot see the link below then paste this in url bar of your browser
http://www.cellhut.com/Pantech-Duo-27297.html