RFID Blocking Card Vs. Sleeve: What Each Does and How To Choose

RFID Blocking Card Vs. Sleeve

Both RFID blocking cards and sleeves play an important role in making sure that the information stored on the RFID cards gets the best protection against unauthorized scanning. Considering that sometimes the information may include access control codes to sensitive areas, the more reason you would want to block such unauthorized scans.

RFID-blocking cards differ from the sleeves in many ways. This includes how it is used, its design, and other features. We compare the two to see how each works and how it compares to the other. In the end, you would choose one that works for your needs to block RFID card scanning.


Why Do You Need to Block RFID Scanning?

Why Do You Need to Block RFID Scanning

RFID is an important technology in many fields. You are likely to find it being used in sensitive applications such as payment processing and access control. This means that you would not always want anyone to scan your RFID cards or tags. In that case, you are protecting them from unauthorized scanning.

When there is unauthorized scanning, sometimes it can lead to identity thrift. This is where you can lose your identity to criminals who would use it for fraudulent activities.

Also, the blocking of unauthorized scanning helps deal with privacy concerns that someone might have. This means you would have better control over who may access your personal information.

You can easily see why someone might be intrigued to consider blocking access to their RFID cards. It might be the reason for you to invest in RFID-blocking cards or sleeves.

RFID Blocking Card: How Does It Work


RFID blocking cards work by creating a barrier that blocks or interferes with the radio frequency signals from an RFID reader. A number of things, such as the materials used to make the cards, are what help the RFID-blocking card be effective at its job. Here is an overview of how the RFID blocking cards work.

Material composition plays a key role in how the cards work. You will find these cards being made of materials, including metal elements such as aluminum. The metal part helps to act as a shield that keeps the RF signals from reaching your cards.

These cards mostly provide you with passive protection of the RFID cards. This is because they do not have a power source, but the protection is achieved because of the inherent properties of the materials used to make them.

The cards are also designed to limit the range of the RF signals. As such, the RFID cards in the proximity of the readers will not be detected, or the signals will be weakened, leading to better protection against unauthorized access.

The placement of the RFID blocking card is important. We recommend placing them alongside the RFID cards so that they can block the signals. Make sure the RFID-blocking card is on top to protect the RFID cards better.


Do RFID Blocking Sleeves Work

Do RFID Blocking Sleeves Work

The name sleeve can give you an idea of what to expect when buying the RFID-blocking sleeves. They are simply protective covers that will shield your RFID cards from unauthorized scanning and access. You can think of the sleeves as passive security that blocks the radio frequency signals.

The RFID-blocking sleeves are mostly constructed using metal layers that encompass the RFID cards when inserted into the sleeve. The most common metals used for making the sleeves include aluminum and similar alloys.

As for the size and shape, you will come across a number of options depending on the supplier. Make sure you get the right size so that they can effectively protect the cards from being scanned easily. Some suppliers can even make customized sleeves to suit your needs better.

The sleeves are generally easy to use. Their use is quite straightforward. You simply slide your RFID cards into the sleeves, and that is it. You do not have to worry about orientation like you would when using the RFID blocking card.

Many people also like the overall flexibility they get with the sleeves since you can protect many RFID cards. So it should not be hard to find a use for it.


Are RFID-blocking sleeves/wallets effective?

Are RFID-blocking sleeveswallets effective

We can say that the sleeves are just as effective depending on how they are designed and constructed. Below are some of the things that can determine their performance.

  • The material quality is highly important to determine if the sleeve works or not. High-quality sleeves will always have better metal layers that make them more effective at handling RFID blocking.
  • The design and construction are other important features to consider. If you get a well-designed sleeve, you can be sure that it surrounds the RFID cards better and provides you with the right protection.
  • Remember that different RFID cards operate at different frequencies. So, the sleeves should also be made with that in mind. There are some sleeves designed to protect the cards operating at a certain frequency. Make sure to get one made to handle a broader range of RFID frequencies.
  • Your card placement in the sleeve can also determine how effective it is at protecting it from unauthorized scanning. Make sure that the cards are fully inserted into the sleeves to get the best protection. That is why you would also want sleeves bigger than cards so that they can fully cover the cards and provide protection.

How To Use RFID Blocking Card

How To Use RFID Blocking Card

You will not have to do much when it comes to using the RFID-blocking card. Here is a quick step-by-step process you can follow to start using the RFID blocking card.

  1. Choose the right RFID blocking card. Make sure it is the right size that can easily cover the other RFID cards you can protect against unauthorized scanning.
  2. Identify the RFID cards from the many cards you have. Slide these cards into the wallet first and then position the RFID-blocking card on top of these cards.
  3. You can always counter check to see if the cards are well protected before placing the wallet into your pocket.

You might as well test the protection to see whether the RFID-blocking card is working or not. Try using an RFID reader close to the wallet to see if it picks the signal. If the blocking is working as expected, the reader will have difficulty reading the cards.

Which is Better? RFID Blocking Card or RFID Sleeves


Right now, you know there are multiple ways you can protect your RFID cards from being scanned by just anyone. However, which method should you consider? Do you get the RFID blocking card or sleeve?

The RFID blocking cards are known for their convenience since they are the same size as the RFID cards. This makes it easier to use with your existing wallets. They also offer some of the best protection with a generalized approach. Still, you do not expect a visible obstruction when using such cards.

However, the RFID-blocking cards can have limited flexibility. They might also not offer the best protection in close proximity as one side of the card is not as protected as the other.

The RFID-blocking sleeves will give you the best flexibility since you can fully enclose the RFID cards you are trying to protect. They can also hold multiple cards at any given time, meaning that you can protect more RFID cards with a sleeve.

The downside is that you may not find sleeve a discreet solution. Also, there is a lot more manual handling of the cards. This means more time is necessary to insert and retrieve the card you need.



Choosing between an RFID-blocking card and sleeve largely depends on your personal priorities, how you like organizing your cards, and many other features. We can see that both provide the layer of security that is needed to keep the cards from being scanned easily. Make sure you take such steps to keep your RFID cards secure, just as you would want.

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