Koveetech New Design Quad Core, 4.5" Inch Worldwide Unlocked Dual Sim 3g / 2g GPS Smartphone Android (Always Current Version), USA Seller Unlock GSM 850/900/1800/1900Mhz,WCDMA 850/2100 MHZ,3.75 G(HSUPA 11.5 Mbps).Support WIFI ap MTK6582M Quad Core Android 4.4.RAM 1 GB ROM 4GB 4.5 inch IPS Screen960x540 pixels,Front 0.3 MP back 5.0 MP camera Build in GPS Unlocked cell phones are compatible with all GSM carriers .. Unlocked cell phones will not work with CDMA Carriers