Zen Ultrafone Amaze 701 was officially announced in October 2013, Device released in October 2013Mobile Network Support and BandZen Ultrafone Amaze 701 have Dual Card Slots,Zen Ultrafone Amaze 701 support all GSM Based network providers. Zen Ultrafone Amaze 701 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 2100,comes with network handling support with Network settings and work offline with flight