The Defender Signal Blocker is a premium, police-accredited faraday pouch that blocks RFID signals from car keys to prevent keyless vehicle theft.

Designed to combat two of today’s biggest driving concerns – keyless car theft and mobile distraction – this dual-purpose pouch is a reliable solution trusted by thousands across the UK.

Dual protection: It blocks signals from car key fobs to prevent thieves from boosting your key’s signal and is spacious enough to hold a smartphone to block all phone signals.

Trusted solution: It prevents relay attacks on key fobs and reduces mobile phone distractions by cutting off calls, notifications, and data while you drive.

Premium materials: Constructed using our exclusive RPF™ and reinforced with double stitching for long-lasting performance.

Police accredited: Officially recognised under the Secured by Design Police Preferred Specification – the UK standard for trusted crime prevention products.

As Seen on ITV News: Proudly showcased by Gwent Police as the official Police Accredited solution to combat vehicle crime.

Award-winning performance:
Auto Express Best Buy – 2018, 2019, and 2023
Shortlisted for In-Car Product of the Year – First Car Awards 2018 & 2019

Easy to use: Simply place your car key or phone inside and seal the pouch. All signals are blocked instantly, and your device reconnects within 5 seconds after removal.

Portable and discreet: Includes a practical external hook for attaching to keyrings or lanyards.

Comprehensive protection: Effectively blocks signals including RFID, Wi-Fi, 3G/4G/5G, GPS, NFC, and EMF – ideal for phones, car fobs, credit cards, travel pouches and more.

12-month guarantee: Backed by a 1-year manufacturer’s warranty for your peace of mind.

Product details:
• Dimensions: 18.6 x 11.5 x 0.6 cm
• Colour: Black
• Pack size: 2 pouches included

Need a smaller option? Explore the Defender Signal Blocker Mini – perfect for compact protection wherever you go.