... the worldDual SIM cards / Unlocked and quad band for worldwide useNetwork support: GSM 850/900/1800/1900MHz, WCDMA 2100MHz4.3 inch ... More. SpecificationModelX3177NetworkDual SIM Cards Dual Standby Unlocked 2G GSM 800/850/1800/1900MHz3G:WCDMA 2100MHzCPUMTK 6577 1GHz Cortex A9 Dual ... screen, Keyboard, Wifi, WLAN, Camera, all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, SpeakerWe shall test ...