Revel R.35 Black GSM Unlocked World Phone Comes with 3 different color backs. Red, White & Blue. Chipset Quad core 1Ghz,Android 4.2.2,Capacitive multi-Touch 2MP Rear Camera,3.5" TFT HVGA display Data Speed:HSPA+ 21 Mbps, Memory256/512 MB,Ext. Memory Up to 32G Micro SD Bluetooth BT 3.0 WIFI802.11 b/g/nVideoCapture/PlaybackAudio Powerful speaker Radio Stereo FM Radio 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.