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.
Exactly as stated. Hopefully protects the car from would-be thieves!
Just the job!
Excellent product and speedy delivery
After being the victim of a cyber attack, I needed something that would block signals from my hacked phone until I could get it professionally wiped, and to protect my new phone – these pouches are awesome as they stop everything, not just Bluetooth and NFC. I have bought several; my only slight gripe is that my S21 Plus with a protective case only just fits inside and it’s a bit of a squeeze, so they could be very slightly larger. Otherwise, top marks!
Brilliant value and it works,gave to family as a gift
I have purchased the defender signal blocker and also the defender “mini” signal blocker. These are the only pouches I’ve found that actually work and block signals. The mini pouch, perfect for just your key fob, with a key ring on the back for for the rest of your keys.
Excellent product, excellent service. Order quickly delivered.
Good quality strong fabric easily fits key fob /phone inside. Would recommend.
I ordered 2 of these Defender minis as I am having trouble with the back doors on my Mini Clubman they keep opening & it is very annoying, so I did a bit of research & found these Defender minis. They arrived very quickly & looked great & well made, I put my keys on the Defender & went to my car & when the key was in the pouch the doors would not open as soon as I took them out normal service was resumed. I would recommend these to anyone if car key security is an issue for you especially with keyless start cars as mine is as they are an effective piece of kit, easy on the pocket & easy on the wallet & give me good piece of mind that my doors will not open on my car without my knowledge & also your keys when in the Defender can not be scanned by thieves.
Brilliant as stated on the website- adds to a feeling of security in theses uncertain times