C520 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/3G smartphone with Windows Mobile 6 for MS Office document editing and easy Outlook email and contacts Up to 3 hours of talk time, up to 150 hours (6.25 days) of standby time Innovative dual slide/double keyboard design; stereo Bluetooth; 1.3-megapixel camera/camcorder; MicroSD expansion Easy-to-use clamshell phone with streamlined design and quad-band GSM/EDGE connectivity Large display font and keypad with backlighting, three Quick Call keys for most frequent callers VGA camera captures stills and video; Bluetooth connectivity for communication headsets Up to 3 hours of talk time, up to 240 hours (10 days) of standby time; measures 4 x 2 x 0.7 inches (HxWxD) Includes: handset, rechargeable battery, charger, quick start guide, user guide