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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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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
Special features
Lightweight

⚡Battery-free jamming chip for lifetime use

🧩Ultra-thin 0.03" fits any wallet seamlessly

🛡️Blocks RFID/NFC signals up to 2.4"

฿1003

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Stay one step ahead of digital thieves with SaiTech’s sleek RFID shield!

SLEEK MINIMALIST DESIGN - At just 0.03 inches thick and credit card-sized, it slips into your wallet or purse without adding bulk or weight.
TESTED TRUSTED IN REAL LIFE - Proven effective at self-checkout terminals—block unauthorized scans and keep your data private with confidence.
ULTIMATE E PICKPOCKET DEFENSE - Shield your identity and finances from invisible digital theft with cutting-edge RFID/NFC blocking technology.
BROAD SPECTRUM WALLET SECURITY - Covers cards within 1.2 inches on either side, securing your entire wallet from contactless hacking attempts.
EFFORTLESS BATTERY FREE PROTECTION - Smart antenna and jamming chip generate a protective signal without ever needing a charge—set it and forget it.

SaiTech IT RFID Blocking Cards 5 Pack offers premium, battery-free protection against contactless identity theft. Featuring a smart antenna and jamming chip, these ultra-thin cards block RFID and NFC signals within a 2.4-inch radius, securing your entire wallet. Designed to fit perfectly in any wallet or purse, this set combines cutting-edge security with minimalist style, trusted by thousands for everyday peace of mind.

Specifications

ASIN	B09K78VB2J
Additional Features	Lightweight, RFID Protected
Age Range Description	Adult
Best Sellers Rank	#44,339 in Fashion ( See Top 100 in Fashion ) #74 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 (6,357)
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	0.07 Pounds
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 Packs	5
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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฿1003

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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