LXLG&reg; Unlocked Anroid 4.4 Smartphone 5.0" Dual SIM GSM Cellphones 3G Moblie phone MTK6572 Dual Core ROM 4GB 5.0MP Camera -White Please open back case to remove the insulating tape on battery before startup! 5.0 inch 540 x 960 Screen System: Android 4.4 MTK6572 Dual Core 1.0GHz Mali-400MP RAM&ROM: 512MB RAM + 4GB ROM Dual Cameras, front camera 0.3MP, back camera 2.0MP Support:Browser, 3G, Calendar, E-book, Wi-Fi, Calculator, MP3, FM, People, MP4, Bluetooth, Sound Recorder, GPS, Alarm 3G (WCDMA 850/2100) and 2G Quad Band International Version (GSM 850/900/1800/1900) network of US Compatible Nationwide on all GSM Networks including AT&T, T-Mobile, H20,Cricket, Tracfone, Straight Talk and others T-Mobile: Lyca, Speedtalk, Go Smart, Simple Mobile, Net10, Straight Talk, Solavei, Ultra Mobile, Telcel America, Walmart Family Mobile. Note:A SIM card need to be purchased separately. Some network company provide the GSM/WCDMA sim card and CDMA sim card also, please buy the GSM/WCDMA SIM card. Do not buy the CDMA SIM card from them.