SIM card backup machine

SIM card information backup machine is a novel convenient high-tech product. It can easily back up telephone directory information of all kinds of SIM card to backup machine. It can also easily copy telephone directory information saved in backup machine to SIM card.
Functions and features
1. backup and copy telephone directory of SIM card
2. volume:8KB (250telephone directory records)
3. single machines operation: neednot connect to PC or PDA to operate
4. lose no information when mobile phone lost
5. Copy information of backup machines to any SIM card if user is using different Sim CARDS in different cities or different countries.
6. Lose no information when out of electricity.

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