Palm Centro Unlocked Phone with QWERTY Keyboard, Touch Screen and 1.3 MP Camera - US Warranty - Blue 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 Black-and-silver Palm-powered smartphone with 320 x 320 color touchscreen,full QWERTY keyboard, and 1.3-megapixel camera Quad-band connectivity for global roaming and EDGE data network compatibility for AT&T Mobile Music streaming and downloads Comprehensive organizer functions, including contacts, to-do lists, calendar; text, e-mail, and instant messaging; Web browser; Bluetooth for wireless headsets; MicroSD memory expansion Up to 3 hours of talk time, up to 300 hours (12.5 days) of standby time; measures 4.2 x 2.1 x 0.7 inches (HxWxD)