SILENT RFID blocking card

Name: SILENT RFID blocking card — Your wallet go quiet | COMUN
Brand: Comun
SKU: CMN-D1-07-DAT
Price: 10 EUR
Availability: InStock
Rating: 4.69 (29 reviews)

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10€

(29 reviews)

DATA PROTECTION · DROP 001 · COMUN

One card. The whole wallet goes quiet.

A single RFID/NFC blocking card that jams unauthorized scans across your whole wallet. E-Field technology — no battery, no app. Slip it in a slot and every contactless card near it goes dark to skimmers.

Specs

1 cardWhole-wallet blockE-Field · no battery
Jams RFID/NFC scans
Protects every card in the wallet
E-Field — no battery, no app
Credit-card size, slips in a slot

DEFEATSRFID skimmingNFC scanscontactless reads

Honest: it disrupts unauthorized 13.56 MHz contactless (RFID/NFC) scans of the cards sharing your wallet — it’s a jammer, not a magic wall. It doesn’t protect your phone, and unless stated it won’t affect 125 kHz building-access fobs. Pull a card out to tap it and that card reads normally.

Card-thinWeightAny walletFitsDrop 001Drop

Verified before shippingDiscreet packagingShips worldwide

3 people are viewing this right now

Estimated Delivery:

03 - 08 Aug, 2026

Sku:

CMN-D1-07-DAT

Categories:

Data Protection, E.D.C.

Brand: Comun

Specs

Specifications

TypeRFID/NFC blocking card (E-Field)

ProtectsEvery contactless card in the same wallet

Frequency13.56 MHz contactless (RFID/NFC)

PowerNone — driven by the reader's own field

MaterialPVC · PET · ABS

Size8.6 × 5.4 cm (3.35 × 2.13")

SetupNone — slip it in and forget it

Good to know

One card protects the whole wallet — no sleeves
No battery, no app, no charging
Works on 13.56 MHz contactless cards
Pull a card out to tap — it reads normally

Field Questions

Field questions

How does one card protect all my cards?

It runs on E-Field technology — when a reader's field reaches your wallet, the FARADAY card uses that energy to throw out a disruptive signal that scrambles the scan for every contactless card sharing the space. One card, whole wallet.

Does it need charging?

No. There's no battery and no app. It draws power from the reader's own field, so it works on its own, every time, with nothing to charge or fail.

What does it actually block?

Unauthorized 13.56 MHz contactless scans — the RFID/NFC band your bank cards and passport use. Unless stated, it won't affect 125 kHz building-access fobs, and it doesn't protect your phone.

Will my own cards still work?

Yes — pull a card out of the wallet to tap or insert it and it reads normally. The card only disrupts scans while everything's sitting together in the wallet.

How big is it?

Standard credit-card size — 8.6 × 5.4 cm — and thin. It takes one card slot and you forget it's there.

Transparency

Honest about thisIt's a jammer, not a magic wall. The card disrupts unauthorized 13.56 MHz contactless (RFID/NFC) scans of the cards sharing your wallet — designed to stop casual skimming, not to make you untouchable. It protects the cards near it, not your phone, and unless stated it won't affect 125 kHz building-access fobs.No battery means nothing to charge or fail — but it also means it works by disruption, inside the same wallet space. Take a card out to tap it and that card reads normally; that's how it's supposed to work.

About the brand

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Product Details

THE PIECE · RFID BLOCKING CARD

One card jams the readers. The whole wallet goes dark.

FARADAY is a single RFID/NFC blocking card. Drop it in a slot and it covers every contactless card sharing your wallet — no sleeves to fumble, no protecting cards one by one. It runs on E-Field technology: when a reader's field hits it, that energy powers a disruptive signal that scrambles the scan. No battery, no app, no charging — it just sits there and jams. Credit-card sized, so it lives in your wallet and you forget it's there.

What it defeats

DEFEATS

Contactless skimming

Disrupts unauthorized 13.56 MHz RFID/NFC scans of the cards in your wallet.

DEFEATS

The fumble of sleeves

One card protects the whole wallet — no sleeving and un-sleeving every card.

DEFEATS

Dead batteries

E-Field tech draws power from the reader's own field — nothing to charge, nothing to fail.

DEFEATS

Bulk

Credit-card size and thin — it takes one slot and disappears.

E-Field — it jams with the reader's own power.

E-Field jams the scan, no battery.

HOW IT WORKS

E-Field — it jams with the reader's own power.

When an RFID reader reaches for the cards in your wallet, its field hits the FARADAY card first. The card uses that energy — E-Field technology — to throw out a disruptive signal that scrambles the read, so the skimmer can't cleanly pull any contactless card sharing the space.

No battery, no app, no setup. It works the instant a reader tries, every time, on its own.

THE BUILD

One slot, every card covered.

Standard credit-card size — 8.6 × 5.4 cm — in a durable PVC/PET/ABS body. Slip it into any card slot and it protects every contactless card in the same wallet at once. No doubling up, no per-card sleeves.

Thin enough to forget, tough enough to live in a wallet you sit on every day.

Credit-card size, slots in once.

Rating & Review

Based on 29 Reviews

Write a review

wren
(verified owner) on January 15, 2026

tested with proxmark-curious friend, no read through it. slim, cheap, works. the most boring and most useful thing in the kit
Marie T.
(verified owner) on January 22, 2026

Petit, fin, et ça fonctionne vraiment (vérifié au terminal sans contact). Glissé sur ma carte bancaire, elle ne réagit plus. Discret dans le portefeuille. Excellent rapport pour un accessoire aussi simple.
byte_
(verified owner) on January 28, 2026

confirmed dead to nfc when sleeved. thin enough to forget. cheapest and most-used thing in my order honestly
Ryan B.
(verified owner) on January 30, 2026

Cheap, slim, and it blocks the read — checked it at a tap terminal. Does the job. The material isn’t luxurious but it’s not meant to be, it’s a sleeve. Got two so my partner has one as well.
Noah W.
(verified owner) on February 9, 2026

Slim, works, costs nothing. Verified no contactless read through it. The kind of thing you set up once and never think about again. Bought a handful — one per card I want protected. Easy recommend.
Antoine L.
(verified owner) on February 13, 2026

Fin, efficace, pas cher. Testé : carte dedans, aucune lecture; carte dehors, ça passe. Exactement ce qu’on attend. Le petit truc qui reste en permanence dans le portefeuille. Rien à redire pour le prix.
rosa.d
(verified owner) on February 18, 2026

got it for my dad who worries about card skimming. easy for him to use, slim, and i tested it blocks before sending it on. good simple gift
Dave K.
(verified owner) on February 21, 2026

Works as intended, confirmed no contactless read when the card’s inside. Slim profile. Only note: it’s a snug fit, so a slightly thicker card (my work badge) takes a firm push to seat. Bank cards slide in fine. For €5 it’s a no-brainer add.
dell.w
(verified owner) on February 26, 2026

does its job, slim fit, cheap enough to grab a few. tight on thicker cards. for standard bank cards it’s perfect
Sophie L.
(verified owner) on March 4, 2026

Glissée sur ma carte, plus aucune lecture sans contact (testé en magasin). Ultra fine, n’épaissit pas le portefeuille. Le genre d’accessoire qu’on installe et qu’on oublie. Pour 5€, aucune raison de s’en priver.
Chris V.
(verified owner) on March 8, 2026

Tested it properly before reviewing: held my contactless card to a payment terminal and to my phone’s NFC reader app, both with and without the sleeve. Sleeved, nothing — no read, no tap. Out of the sleeve, instant. So it actually works, which you can’t take for granted with cheap RFID stuff. Slim enough it doesn’t change how my wallet sits.
Greg M.
(verified owner) on March 12, 2026

Simple thing done right. Slips over the card, kills the contactless handshake (confirmed at a self-checkout — wouldn’t read through it). Barely adds thickness. For a fiver it’s the easiest privacy upgrade in a wallet. Bought spares for family.
Owen R.
(verified owner) on March 21, 2026

Tested, confirmed, done. Card in the sleeve won’t read at a terminal or to a phone. Slim, cheap, permanent wallet resident. There’s nothing to overthink here — it works and it costs a fiver.
kestrel
(verified owner) on March 25, 2026

threat model is basic but real — opportunistic skimming. this shuts it down for the price of a coffee. tested, confirmed, forgotten about in the best way
Hugo D.
(verified owner) on March 29, 2026

Fin et fonctionnel. Bloque bien la lecture sans contact, vérifié. La matière est correcte sans plus, mais à ce prix on ne va pas se plaindre. J’en ai pris deux. Fait le travail.
edc_tom
(verified owner) on April 2, 2026

for the wallet crowd: fits a standard cr80 card snug, kills 13.56mhz reads completely (tested), adds basically zero thickness. cheapest peace of mind in the kit
Sam R.
(verified owner) on April 8, 2026

Practical and cheap. Carry a couple of cards I’d rather weren’t silently readable, these handle it — tested by failing to tap through them. Slim, no bulk added. Sometimes the simplest piece of kit is the most useful.
Ethan B.
(verified owner) on April 15, 2026

Confirmed it blocks NFC with a reader app — card inside is dead to the scanner. Slim enough I keep my “tap” card sleeved and pull it only when I want to pay deliberately. Cheap, effective, simple. Exactly what it should be.
m_null
(verified owner) on April 19, 2026

verified with an nfc reader app. card goes silent in the sleeve. thin, cheap, does exactly the one thing. lives in my wallet now
tariq.k
(verified owner) on April 23, 2026

cheap insurance against drive-by skimming. tested it blocks, it’s thin, it stays in the wallet. simple
josh.t
(verified owner) on April 26, 2026

grabbed it to hit free shipping, turned out genuinely useful. slim, blocks the tap, cheap. no reason not to have one
Marcus B.
(verified owner) on April 30, 2026

Did the obvious test — tried to pay through the sleeve, terminal got nothing. Out it comes, instant tap. So it works. Adds no real thickness. A fiver well spent and it just stays in the wallet permanently.
Léa M.
(verified owner) on May 4, 2026

Vérifié avec mon téléphone : carte glissée dans la pochette, plus aucune lecture sans contact. Hyper fin, ça ne gonfle pas le portefeuille. Le plus petit accessoire de la commande, et celui que j’utilise sans y penser. Parfait.
nico_
(verified owner) on May 8, 2026

works, slim, cheap. material could be a touch more durable for daily in-and-out but at this price i’ll just replace it when needed. blocks reads no problem
Camille B.
(verified owner) on May 11, 2026

Très fin, se glisse partout, bloque efficacement. Petit bémol : un peu juste pour les cartes épaisses. Pour les cartes bancaires standard, parfait. Bon petit achat utile et pas cher.
Hannah P.
(verified owner) on May 17, 2026

Bought a couple after reading about contactless skimming. They’re slim and they work (tested by trying to tap through the sleeve — nothing happens). Knocking a star only because one of the two had a slightly uneven seam. Functionally both fine.
Aaron T.
(verified owner) on May 19, 2026

Slim sleeve, blocks the read (tested). Snug fit which is good for retention but means thicker cards need a push. For a standard card it’s ideal. Cheap, functional, does what it says.
Patrick H.
(verified owner) on May 22, 2026

The smallest, cheapest thing in my order and arguably the most used. Tested it actually blocks (it does), it’s thin, and it just lives in the wallet. No reason every wallet doesn’t have one of these.
Étienne M.
(verified owner) on May 25, 2026

Simple et efficace. Carte insérée, lecture sans contact impossible (vérifié). Très fin, aucune gêne dans le portefeuille. Le plus petit élément de la commande mais le plus utilisé au quotidien. Parfait.

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SILENT RFID blocking card

Specs

Specs

Field Questions

Field Questions

Transparency

Transparency

About the brand

Comun

SILENT RFID blocking card

Product Details

E-Field — it jams with the reader's own power.

One slot, every card covered.

Rating & Review

wren

Marie T.

byte_

Ryan B.

Noah W.

Antoine L.

rosa.d

Dave K.

dell.w

Sophie L.

Chris V.

Greg M.

Owen R.

kestrel

Hugo D.

edc_tom

Sam R.

Ethan B.

m_null

tariq.k

josh.t

Marcus B.

Léa M.

nico_

Camille B.

Hannah P.

Aaron T.

Patrick H.

Étienne M.

Question & Answer

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