Unlocked 6.0" Dual Sim Cell phones Android 5.1 MTK6580 Quad Core 1GB/8GB GSM Quadband-JUNING 3G Smartphone Gold Please open back case to remove the insulating tape on battery before startup! 6.0 inch IPS HD(1280*720) Screen;Dual Camera:2MP/2MP OS:Android 5.1 CUP:MTK6580 Quad Core 1.3GHz GPU:Mali-400MP RAM&ROM: 1GB RAM + 8GB ROM 3G (WCDMA 850/2100) and 2G Quad Band (GSM 850/900/1800/1900) network.please buy the GSM/WCDMA SIM card. Do not buy the CDMA SIM card from them.