Blackberry Torch 9810 8GB Unlocked GSM 4G HSPA+ OS 7.0 Slider Phone - Zinc Grey 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. 4G-enabled professional smartphone with 3.2-inch touchscreen, slide-down QWERTY keyboard, and BlackBerry 7 OS 1.2 GHz processor, and Liquid Graphics technology; Wireless-N Wi-Fi networking; GPS for navigation and location services 5-MP camera with HD 720p video capture; Bluetooth stereo music; 8 GB memory; microSD expansion; HTML5 web browser Up to 6.5 hours of talk time, up to 300 hours (12.8 days) of standby time