Geo’s Super-slim, cool-lookin, EMI-shielding wallet – “Ever get tired of carrying around a huge honkin’ leather wallet? Want to impress your hipster friends with your wacky style? Worried about your credit cards getting erased by all those stray electromagnetic fields you’ve been hearing about? Then this is the wallet for you.” Link.
2 thoughts on “HOW TO – Super-slim, cool-lookin, EMI-shielding wallet”
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Looks cool… don’t expect it to actually work, though. I tested the material using a closed bag with my RFID security access card and it made zero impact on the distance the card was detected from the reader. The material is static dissipative, but not EMI blocking in the frequency range used by RFID cards. Magnetic fields are not affected by this material either, so it cannot protect the mag stripes on your credit cards, etc. Highly conductive metal foil (iron/steel for magnetic shielding) is needed for EMI shielding.