Signal Vault - how does the RFID blocking cards work?

Discussion in 'Tags' started by B34R, Aug 25, 2016.

  1. B34R

    B34R New Member

    Hi,

    I watched Shark Tank a couple of weeks ago and there was a guy that had developed a card that blocked RFID scanners to read information from your credit cards (http://www.signal-vault.com) and I couldn't figure out how the cards were working. Can anyone tell me how the technology works - they mention efield technology and white noise, but me being suspicious calls BS on the product. I don't have enough knowledge of RFID and how it works. Can anyone here tell me if it works, and if it does, how does it actually work?

    Thanks,
    Bjorn
     

Share This Page