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Using method:Put RFID High Frequency blocked card together with your smart cards, e-bank card and passport,and the signal of your cards will be blocked ,the Criminals can not steal your information whatever reader they use. To protect your information save ,there have some requirement of the using environment.
Product Datasheet :
Size:85.5*54mm
Thickness:1.35mm+-0.05mm
Blocking distance:inside 10mm(depend on working condition)
Customize printing ,number printing.
