Signal blocking Faraday bags by SecurityBase – protect against hackers and unwanted signals, with double lining , extended seal and proven durability
Car Key Faraday Pouch
$12.95
Prevent keyless car theft with this signal blocking Car Key Faraday Pouch. It stops relay attacks and blocks the signal from your car key, making it impossible for thieves to intercept and repeat the signal.
Its 13 × 9 cm size fits all standard car key fobs. The pouch effectively blocks all key-fob signals, including 315 / 433 MHz, RFID, NFC, and Bluetooth.
How The Car Key Signal Blocking Pouch Works
This signal blocking pouch for car keys blocks all wireless signals by surrounding your key fob with a layer of signal-shielding material, also known as a Faraday cage. This cuts off communication via RFID, NFC, and keyless entry signals — helping to stop relay attacks and digital theft attempts.
To use, simply place your car key inside the signal-blocking car key sleeve, close the flap securely, and you're protected. It requires no batteries or setup — just dependable, passive security.
Ideal for anyone looking to prevent keyless car theft, especially owners of vehicles with proximity-based entry systems. It’s a simple and effective way to protect your vehicle from digital theft — whether you’re looking for a Faraday pouch, a key fob signal blocker, or a car key signal-blocking case.
Effective Protection
with <0.05 Ω resistance and 85 dB+ shielding performance
Trusted Australian Brand
endorsed by cyber security experts
Full-Spectrum Shield
blocks 4G, 5G, WIFI, RFID, RF, Bluetooth & GPS
Warranty & Service
2-year warranty and local customer service
Signal Blocking Bags - FAQ
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A Faraday bag blocks wireless signals by surrounding your device with a specially designed shielding material. When sealed inside, the device cannot send or receive signals such as Bluetooth, Wi-Fi, GPS, NFC, or mobile data, helping protect against tracking, hacking, and unauthorised access.
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Our Faraday bags are build for excellent signal blocking performance, featuring a double copper-nickel woven mesh laminated to a polyester substrate. This advanced material delivers a surface resistance below 0.05Ω and a shielding effectiveness exceeding 85 dB.
These specifications meet requirements associated with military-grade EMP protection, particularly the MIL-STD-188-125 standard.
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A signal-blocking bag improves security and privacy by preventing your device from sending or receiving wireless signals. When sealed inside, it helps stop tracking, remote access, data transmission, and unwanted connectivity — keeping your device private, secure, and fully offline.
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A car key signal blocker bag prevents car theft by blocking the radio waves emitted by key fobs, making it impossible for thieves to use a technique called a "relay attack." This is how it works:
Keyless Entry and Relay Attacks
- Modern cars often use keyless entry systems, where a key fob transmits a radio signal to unlock the car when you're nearby.
- Thieves can exploit this system with a relay attack. They use two devices; One intercepts the weak radio signal from your key fob near your house (often through windows or walls). The second device, placed near the car, amplifies the intercepted signal and transmits it to the car, tricking it into unlocking as if the key fob is right there.
Car Key Signal Blocker
- When you place your key fob inside the bag, the radio waves it transmits get disrupted.
- The electrons in the metal mesh move in response to the waves, creating a current that opposes the original signal.
- This opposing current weakens or cancels out the radio wave from the key fob inside the bag.
Essentially a Silent Zone for Your Key Fob
- With the signal blocked, the thief's device outside cannot receive or amplify the key fob's signal.
- The car's receiver never "hears" the signal, preventing it from recognizing the key and unlocking.
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No, you cannot use the car key when the key is in the Faraday pouch. They are designed to provide maximum protection against signal cloning or interception in all scenarios, even when a scanner is nearby.
To use your car key, e.g. to open or start the car, simply remove the key from the pouch. The included keychain makes this easy while the key stays attached to the pouch.
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Turning a smartphone off doesn’t always fully disconnect it. Some wireless components can remain active in low-power modes, even when the phone is switched off or in airplane mode. This allows features like device-finding and background signal activity to continue.
For complete privacy and security, a Faraday bag physically blocks all wireless signals, preventing communication.
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For maximum signal blocking:
- Place your car key, phone, tablet or other device inside the inner compartment lined with Faraday fabric.
- Ensure the Velcro closure is fully sealed, with the Faraday lining double-folded for complete signal isolation.
- Avoid overfilling the bag or pouch, as a tight, uninterrupted seal is essential for effective protection.
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Yes, we do. We supply Faraday Pouches for wholesale, corporate, and bulk orders. Please contact us with your requirements, and we will provide pricing and lead times.
Signal-blocking pouches by SecurityBase
Trusted signal-blocking protection, built for everyday use.
Developed to deliver reliable security and privacy without complexity.
Signal-Blocking Shielding
Our Faraday bags use a double copper-nickel woven mesh to effectily block wireless signals, helping prevent tracking, remote access, and data transmission.
Slim. Secure. Everyday-Ready.
Designed to fit neatly into bags, backpacks, and glove boxes, our Faraday pouches protect your devices without adding bulk.
Protection for More Than Phones
Ideal for phones, car fobs, tablets, and other wireless devices; anywhere privacy and security matter.
