Before year, the net ever also had reported Shenzhen car macrocosm the area installed Shenzhen to be proud the wide Benaode that defends intelligent key is surpassed happen by pilfer unsuccessful case, because produce the adoption of product itself the United States' most advanced radio frequency identity identifies a technology (RFID) chip, RFID common says " electronic label " , be contact of a kind of blame is automatic identify a technology, radio frequency technology basically is composition of two RFID chip, below the circumstance that need not contact between two chip, identify a password automatically and exchange information, RFID is current international accepted the password technology that was not defeated to solve, active the car pilfer tool of all sorts of decoder, it is invalid that practice all proves to be defended to be proud.