RFID Blocking Card / Shield Card yog qhov loj ntawm daim npav rho nyiaj uas tsim los tiv thaiv tus kheej cov ntaub ntawv khaws cia hauv daim npav rho nyiaj, daim npav rho nyiaj, daim npav ntse, RFID daim ntawv tsav tsheb thiab lwm yam RFID Daim Npav los ntawm e-pickpocket tub sab siv handheld RFID scanners.