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.
Product is very good quality at a competitive price
Absolutely fantastic product & great price would recommend to anyone keep up the good work.
Excellent value for money as you get 2 pouches. They hold car keys and also a phone which is an added bonus. We were advised to buy these by a friend mainly to protect against car theft but it’s great to have the option of using it for phones as well.
The pouches are well-made from strong material and not too bulky. Would recommend.
I bought the Defender key protector and it did work well for about a month. However, last night discovered I can know open and close my car and even start it while it is in the pouch. So in other words its now pointless. I appreciate things get worn, but a month is not really acceptable. Advise look at alternatives.
Good service, fast delivery. Very happy with product.
Great product at a good price
A faraday pouch that really works.
Appears to be larger than the previous version but still works great!
Very effective. If car keys in the bag, car will not start even though it is in the central open pocket
I bought the Defender Blocker Mini via Amazon in December for a planned new car. It may have worked OK previously but today I discovered I can open the car without removing the key from the pouch and even drive my car like this. I only had to take it out of the pouch to lock the car. Fortunately I belt and braces at home and keep the key in the pouch in a tin as well.