Product Name: SIM Card Back UpModel Number: NS-02/102Place of Origin: ChinaFeatures: 1) This product can back up and duplicate the directory materials in GSM or the CDMA cell-phone card fast 2) Back up capacity of device: 8KB, can store 250 groups of telephone numbers originally 3) This product does not need connecting with computer for using 4) After materials back up, cell-phone for instance, you needn\'\'t be afraid of losing the directory materials either to lose 5) When users need to use different cell-phone cards because of different city or country, can share the backing up device materials to any cell-phone card 6) Even if the power is exhausted, it will not lose the materials that have already been stored in the spare device either Outer packing: NS-02: blister card package NS-102: color box