BLU Dash JR Social D141s Unlocked GSM Dual-SIM Android Smartphone - White 2G: GSM 850 / 900 / 1800 / 1900 (SIM 1 & SIM 2) 3.5" TFT Display Capacitive Multi-Touchscreen Android v2.3 (Gingerbread), 1 GHz Cortex-A5 Processor, Mali-400 Graphics 2 Megapixel Camera (1600 x 1200 pixels) w/ Video 480p@30fps + Front-Facing VGA Camera Internal Memory: 256 MB ROM, 128 MB RAM + microSD Slot Expandable up to 32GB Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.