... MTK6577, Dual Core, 512 RAM + 4G ROM, WIFI, 3G, GPS Manufacture SpecificationBandGSM 850/900/1800/1900, can be used anywhere ... major worldwide cell phone networks. WCDMA 850/2100MHzService ProviderUnlockedOperation System Android 4.1 Ice Cream SandwichCPUMTK6575, Cortex A9 Dual ... H152 x 82 x 11mmGPSYes, built in, support A-GPS and voice navigation with EPO assistance to speed up postioningPackage List ...