Does this have to be placed over your cards in your wallet for it to work ?

Easy to Use: Simply place the rfid blocking card next to ID, credit card, debit card, passport for protection.

Does the card use active or passive technology?

No moving parts, no battery, so I would describe it as passive.

How would i know what frequency my cards use? this product won't work with: frequency from 100khz to 125khz.

The best bet is to contact the manufacturer.

Has anyone tested these?

Only testing I been able to do is use them and hope they are really more then a aluminum card. So bad things so far.

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SaiTech IT RFID Blocking Cards 5 Pack Premium Contactless NFC Debit Credit Card Passport Protector Blocker Set for Men & Women, Smart Slim Design Perfectly fits in Wallet/Purse (Black)

SaiTech IT RFID Blocking Cards 5 Pack Premium Contactless NFC Debit Credit Card Passport Protector Blocker Set for Men & Women, Smart Slim Design Perfectly fits in Wallet/Purse (Black)

Product ID: 386121041

Details

Brand
SAITECH IT
Colour
black
Material
Polyvinyl
Pattern
Solid
Style
Classic

⚡Battery-free jamming chip for lifetime use

💳Ultra-thin 0.03" credit card size

🛡️Blocks RFID/NFC signals up to 2.4"

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€ 28.03

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Stay one step ahead—secure your wallet with SaiTech’s sleek RFID blocker!

SLEEK DISCREET - Slim 0.03" profile fits seamlessly into any wallet or purse without adding bulk.
TESTED TRUSTED - Proven effective at self-checkout—block unauthorized scans and keep your data safe.
EFFORTLESS SECURITY - No batteries needed—our smart jamming chip powers itself from incoming signals for lifetime protection.
BROAD SIGNAL DEFENSE - Protects cards up to 1.2" on either side, securing your entire wallet’s contents.
ULTIMATE WALLET SHIELD - Stop e-pickpocketing dead in its tracks with advanced RFID/NFC blocking technology.

SaiTech IT RFID Blocking Cards come in a 5-pack of ultra-thin, credit card-sized blockers that prevent identity and financial theft by jamming RFID and NFC signals within a 2.4-inch radius. Featuring a battery-free antenna and jamming chip, these cards provide lifetime protection while fitting perfectly in any wallet or purse, making them an essential security upgrade for the modern contactless world.

Specifications

ASIN	B09K78VB2J
Additional Features	Lightweight, RFID Protected
Age Range Description	Adult
Best Sellers Rank	#4,420 in Fashion ( See Top 100 in Fashion ) #14 in Men's Credit Card Holders
Brand Name	SAITECH IT
Closure Type	Open Top
Color	black
Customer Reviews	4.6 4.6 out of 5 stars (5,144)
Embellishment Feature	Metal Logo
Form Factor	Card
Importer Contact Information	SaiTech IT Private Limited, FF 09, Greenfield 4+, Bhayli, Vadodara, Gujarat-391410, India, Email: [email protected], Phone: +9194295-77309
Included Components	5 x RFID Blocking Cards
Item Dimensions D x W x H	85D x 1W x 55H millimeters
Item Type Name	Travel Accessory- Travelers Card Sleeves
Item Weight	34 g
Lining Description	Carbon Fiber
Manufacturer	SaiTech IT Private Limited
Manufacturer Contact Information	KUYIA Technology Co. Ltd., 7th Floor, Building 4, China Taiping Longbi Industrial City, Bantian, Longgang, Shenzhen, Guangdong 523599, China, Phone : +8613652302094
Manufacturer Part Number	5 Pcs RFID Blocking Card
Material Type	Polyvinyl Chloride
Model Name	RFID Blocking Card
Model Number	RFID Blocking card
Number of Compartments	1
Number of Sections	1
Packer Contact Information	SaiTech IT Private Limited, FF 09, Greenfield 4+, Bhayli, Vadodara, Gujarat-391410, India, Email: [email protected], Phone: +9194295-77309
Pattern	Solid
Pocket Description	No pocket
Product Care Instructions	Wet Wipe Clean
Style Name	Classic
Subject Character	no subject character
Target Audience	Unisex-Adults
Unit Count	5 Count
Wallet Card Slot Count	5
Wallet Compartment Type	Credit Card

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€ 28.03

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Finland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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