SONY Xperia T2 Ultra 4G 6" Cell Phone GSM Unlocked 1GB Wi-Fi- Black UMTS HSPA+ 850 (Band V), 900 (Band VIII), 2100 (Band I) MHz GSM GPRS/EDGE 850, 900, 1800, 1900 MHz LTE (Bands 1, 3, 5, 7, 8, 20)Specifications: Mobile Operating System: Android 4.3