ZTE Grand X LTE T82 was officially announced in July 2012, Device released in November 2012Mobile Network Support and BandZTE Grand X LTE T82 have Mini-SIM Card Slots,ZTE Grand X LTE T82 support all GSM Based network providers. ZTE Grand X LTE T82 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900, HSDPA 900 / 2100, HSDPA 850 / 2100 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 900,HSDPA 2100,ZTE Grand X LTE T82 also support LTE based