ZTE Maven 3 was officially announced in August 2017, Device released in August 2017Mobile Network Support and BandZTE Maven 3 have Nano-SIM Card Slots,ZTE Maven 3 support all GSM Based network providers. ZTE Maven 3 mobile device support 2G Band Frequency at GSM 850,GSM 1800 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 1900,ZTE Maven 3 also support LTE based 4G Networks Support at Frequency level LTE 700,LTE 850,LTE 1700,LTE 1900,comes with network handling