Verykool i121 was officially announced in January 2013, Device released in January 2013Mobile Network Support and BandVerykool i121 have Dual Card Slots,Verykool i121 support all GSM Based network providers. Verykool i121 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900, Both SIM 1 & SIM 2 and there is no 3G Network Band Support,comes with network handling support with Network settings and work offline with flight Mode. Device