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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5 Pack RFID Blocking Card for Credit Debit ID Card, Golden

Product ID: 552413881

Details

Brand
SaiTech IT
Color
Golden
Material
Polyvinyl
Pattern
Letter Print
Style
Rfid Card

⚡Battery-free jamming chip for lifetime use

💳Ultra-thin 0.03" credit card size

🛡️Blocks RFID & NFC signals up to 2.4"

NT$716

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Stay one step ahead—secure your wallet, secure your peace of mind!

SLEEK DISCREET - At just 0.03 inches thick and credit card-sized, it fits seamlessly into any wallet or purse without bulk.
TESTED TRUSTED - Proven effective at self-checkout terminals—block unauthorized scans instantly and confidently.
EFFORTLESS SECURITY - Battery-free jamming chip activates automatically, delivering lifetime RFID/NFC blocking without any maintenance.
COMPLETE WALLET SHIELD - One card protects all your contactless cards within a 2.4-inch radius—no more e-pickpocketing anxiety.
UNIVERSAL COMPATIBILITY - Works flawlessly with all contactless bank, debit, credit, ID, and ATM cards—perfect for men and women on the go.

The SaiTech IT RFID Blocking Card is a slim, golden, credit card-sized protector that uses a battery-free jamming chip and antenna to block RFID and NFC signals within a 2.4-inch radius, safeguarding your entire wallet from electronic theft. Designed for both men and women, this 5-pack offers ultra-thin, durable protection compatible with all contactless cards, ensuring effortless, lifetime security without added bulk.

Specifications

ASIN	B0CD2D8CYQ
Additional Features	Lightweight, RFID Protected
Age Range Description	Adult
Best Sellers Rank	#903 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1 in Men's Card Cases
Brand Name	SaiTech IT
Color	Golden
Customer Reviews	4.7 4.7 out of 5 stars (9,752)
Form Factor	Slim
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 Card Protector
Is Customizable?	No
Item Dimensions D x W x H	3.34"D x 0.03"W x 2.12"H
Item Weight	28.35 Grams
Lining Description	No Lining
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 Protected Card-Golden
Material Type	Polyvinyl Chloride
Model Name	Saitech It Rfid Blocking Card
Model Number	RFID Blocking Card-Golden
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	Letter Print
Product Care Instructions	Wet Wipe Clean
Style Name	Rfid Card
Target Audience	Unisex-Adults
Unit Count	5 Count
Wallet Card Slot Count	5
Wallet Compartment Type	Credit Card

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Received my product in pristine condition. Great service overall.

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