Karbonn Smart A52 was officially announced in February 2014, Device released in February 2014 Karbonn Smart A52 made under A Series.Mobile Network Support and BandKarbonn Smart A52 have Dual Card Slots,Karbonn Smart A52 support all GSM Based network providers. Karbonn Smart A52 mobile device support 2G Band Frequency at GSM 900,GSM 1800 and there is no 3G Network Band Support,comes with network handling support with Network settings and work offline with flight