Micromax Bolt A066 was officially announced in January 2015, Device released in January 2015Mobile Network Support and BandMicromax Bolt A066 have Dual Card Slots,Micromax Bolt A066 support all GSM Based network providers. Micromax Bolt A066 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,comes with network handling support with Network settings and work offline with flight Mode.