AXGIO Wing W2 5.0&rdquo; HD IPS TouchScreen Android 4.2.2 OS MTK6582 1.3GHz Quad Core 3G Unlocked Smart Phone Cell Phone Mobile Phone Cellphone Dual-SIM 8MP CAM WIFI Bluetooth GPS HSPA+ At&t, T-mobile with Fun Color Gift: 3 Free Back Cover White/Yellow/Champagne One of the best price-for-value 4 core smart phones. Outstanding quality with reasonable price 1.3GHz MTK6582 CUPs give this device strong processing power to let user to play latest 3D games effortlessly Smart power optimization enable user to go out for hiking for a day without worry about battery. Customized UI based on Android 4.x releases the full potential of the powerful Hardware, with curvy design with multiple selections of colorful back covers enable user to freely switch the looks of phone according mood of the day. Driven by the deep insight of customer needs, Axgio is aimed to design and produce distinctive mobile devices and accessories all over the world. Axgio provides not only the hardware composed of metal and plastic like normal things in the market, but with homemade software inside. With great creativity and enthusiasm, the developers from Axgio have made a remarkable enhancement on Android and give birth to a new system named Neonado OS with utility and humanity. The firmware of latest-version Neonado UI, namely Neonado 1.1, has been released on our official forum Neonado.com for free download. All AXGIO products related questions and problems can be posted and discussed on the forum. Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.