Sim card back up

1. The backing up device can back up and duplicate the directory materials in thecell- phone card fast; 2. Back up capacity of device 32KB, can store 4 cards' directory, total 1000 grouptelephone number; 3. This product is a single unit which can be operated without connecting with computerand PAD; 4. After materials back up, there will be no need to worry about loosing the directorymaterials; 5. When users need to use different cell-phone card in different area or country,he can share the backing up device materials to any cell-phone card easily; 6. Even if power exhaust, the materials which had been already stored in the devicewill not lose. Print Area:25*10mm Package: Gift Box 100pcs/carton G. W.:9.7Kgs CBM:45*29*25.5cm