Antitheft Locking Devices · February 28, 2025

HEYCE SignalSafe Faraday Box and Pouch for Keyless Car Security

In the evolving landscape of automotive security, the risk of relay attacks targeting keyless entry systems has become a pressing concern for modern vehicle owners. As thieves exploit vulnerabilities in wireless key fob signals, solutions like the HEYCE SignalSafe Faraday Box and Pouch 2 Pack aim to provide a robust line of defence. Combining carbon fibre construction with RFID-blocking technology, this duo offers a practical yet sophisticated approach to safeguarding keyless entry car keys. Here’s a detailed exploration of its features, performance, and real-world usability.

Design and Build Quality
Crafted from lightweight yet durable carbon fibre, the Faraday Box and Pouch are designed for everyday resilience. The box, with its rigid structure, provides a solid shield against signal interception, while the flexible pouch offers portability without compromising security. Users frequently highlight the sleek, modern aesthetic of both components, noting that the carbon fibre finish aligns well with premium automotive accessories. One reviewer remarked, “The box feels sturdy enough to survive being tossed into a bag, and the pouch slips easily into a pocket without adding bulk.”

The Faraday Box measures 12 x 8 x 3 cm, accommodating most standard-sized key fobs, though some drivers with bulkier keys or additional attachments have mentioned a “snug fit” that requires careful positioning. The pouch, slightly more forgiving, features a fold-over closure with a magnetic seal, ensuring quick access while maintaining signal-blocking integrity.

Signal Blocking Performance
The primary function of the HEYCE SignalSafe products is to block RFID, GPS, and radio signals emitted by key fobs, thereby preventing relay attacks. Independent testing and user feedback confirm that both the box and pouch effectively isolate signals when properly closed. A Tesla owner shared, “After months of using the pouch, my car hasn’t experienced any ghost unlocking or unauthorised access attempts.”

However, consistency is key. A small number of users noted that “the box’s lid must be fully shut to guarantee complete shielding,” emphasising the importance of ensuring no gaps remain. The carbon fibre material, coupled with an internal signal-blocking layer, creates a Faraday cage effect, which neutralises electromagnetic fields. This dual-layer design has been praised for its reliability, even in high-risk environments like crowded car parks.

Portability and Practicality
For drivers juggling multiple keys or those frequently on the move, the inclusion of both a box and pouch adds versatility. The box is ideal for home or office storage, while the pouch serves as an on-the-go solution. A delivery driver commented, “I keep the box in my work van for overnight storage and use the pouch during the day. It’s eliminated my anxiety about theft.”

The lightweight nature of both products (the box weighs 95g, the pouch just 25g) ensures they don’t add unnecessary weight to keychains or pockets. Some users, however, suggested that the pouch’s magnetic closure could benefit from a stronger adhesive force to prevent accidental openings, though no tested failures have been reported.

Durability and Longevity
Carbon fibre’s reputation for strength and corrosion resistance translates well to this application. Users report that both the box and pouch show minimal wear after months of daily use, with no fading or material degradation. “I’ve dropped the box onto concrete a few times, and apart from minor scuffs, it’s held up perfectly,” noted a Land Rover owner. The anti-scratch coating further enhances longevity, maintaining the product’s premium appearance.

User Experience and Feedback
The majority of reviews underscore satisfaction with the HEYCE SignalSafe duo’s blend of functionality and style. A common theme is the peace of mind it provides. “Knowing my key’s signals are blocked gives me confidence, especially when parked in unfamiliar areas,” shared a BMW driver. Another user appreciated the intuitive design: “No complicated setup—just drop the key in and close it.”

Criticisms are minor but worth noting. A handful of users found the box’s hinge mechanism stiff during initial use, though this typically loosens over time. Others with larger key fobs, such as those integrated with multi-tools, mentioned that the box’s interior could be “slightly more spacious” to accommodate non-standard shapes.

Conclusion
The HEYCE SignalSafe Faraday Box and Pouch 2 Pack addresses a critical need for drivers of keyless-entry vehicles, offering a reliable, portable, and visually appealing security solution. Its carbon fibre construction, rigorous signal-blocking performance, and thoughtful dual-design approach make it a standout choice in a crowded market. While no product is without minor flaws, the overwhelming consensus among users is that this set delivers on its promise of enhanced protection without sacrificing convenience. For those prioritising defence against relay attacks, this combination of robust engineering and practical design is a compelling investment in automotive security.

Whether stored at home, carried on-the-go, or used in tandem for layered protection, the HEYCE SignalSafe products exemplify how modern materials and intelligent design can mitigate evolving security threats—a must-have for any driver seeking to future-proof their vehicle’s safety.

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