BLU Win Jr LTE - GSM Unlocked Windows Smartphone - Yellow 4G LTE, Unlocked Dual Sim Phone, Windows 8.1 Qualcomm Snapdragon 410, 1.2GHz Quad-Core, 64Bit architecture and Adreno 306 GPU 4.5" IPS Display; 5MP Autofocus Camera with LED Flash, Video Recording, Front Camera 4G LTE, (700,1700,2600),4G HSPA+ (850/1700/1900/2100). GSM Quad Band: US Compatibility Nationwide on all GSM Networks including AT&T, T-Mobile, Cricket, MetroPCS, Straight Talk and others. Unlocked, and compatible World-Wide including Brazil, Mexico, Colombia, Venezuela, and other countries