ProntoTec 7'' Dual Core Dual SIM Unlocked PhoneTab K1 Android 4.2 Tablet PC, Dual Camera, HD 1024x600, 4GB, Google Play Pre-loaded, 3G+WI-FI Supported &ndash; Black Support 3G Calling,dual sim card dual standby,you can use this tablet as a mobile phone Support GPS,can be used as a GPS navigation Bluetooth for high-speed data transferring and hands-free access to calling 5-point HD capacitive touch screen for convenient operation; 7 inch screen Android 4.2 MTK8312 Dual-core 4GB Tablet Phone Supports 3G, call, SMS, Bluetooth, GPS, WiFi, Dual camera 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.