Unlocked KTD&reg; 2 Sim Mtk6572w Cortex A7 Dual Core, 1.3ghz Android 4.2 Smart Phone 4.0 Inch Compatible with GSM Carriers T-mobile Simple Mobile At&t Straight Talk Net 10 Wifi Multi Touch Screen 4" Cell Phone Android 4" multi touch screen GSM unlocked for ATT Tmobile straight talk no 3G/4G data connection,Could not work in verizon WIFI,Bluetooth,Dual core.