BlackBerry Pearl 3G 9100 Unlocked GSM Phone with 3.15MP Camera, QWERTY Keyboard, Bluetooth, Wi-Fi and GPS - US Warranty - 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. Unlocked Quad-Band GSM cell phone compatible with 2G Network 850/900/1800/1900 MHz frequencies and 3G Network HSDPA 850/1900/2100 or HSDPA 800/1900/2100, HSDPA 900/1700/2100 plus GPRS/EDGE data capabilities 3.2-Inch TFT LCD, 480x360 pixel HVGA+ color display; Optical track pad; All-touch screen; Pre-installed Face book and Twitter apps; MP3/MP4 Player; 3.5mm Audio jack; On-screen keyboard: portrait Sure Type, QWERTY and multistep, and landscape QWERTY. 5MP Camera, 2592  1944 pixels, LED flash and VGA video recording (640x480); BlackBerry OS 7.0; Bluetooth; Wi-Fi; GPS; BlackBerry maps; HTML Browser; Internal Memory 512 MB storage, 512 MB RAM and MicroSD Card slot expandable up to 32GB. Talk time up to 5h 30min (2G)/Up to 5h 40min (3G) - Stand-by up to 360h (2G)/Up to 360h (3G)