---
product_id: 61222289
title: "Defender Signal Blocker 2 Pack - RFID Faraday Pouch - Police Accredited Car Key Security Case - Phone Case Signal Blocking Device - Faraday Bag For Car Keys Mobile Phone Credit Cards"
brand: "defender"
price: "¥4942"
currency: JPY
in_stock: true
reviews_count: 8
category: "Defender"
url: https://www.desertcart.jp/products/61222289-defender-signal-blocker-2-pack-rfid-faraday-pouch-police-accredited
store_origin: JP
region: Japan
---

# Full phone signal blackout (calls, Wi-Fi, 3G/4G/5G) Blocks RFID, NFC, GPS & EMF signals Police accredited, double-stitched durability Defender Signal Blocker 2 Pack - RFID Faraday Pouch - Police Accredited Car Key Security Case - Phone Case Signal Blocking Device - Faraday Bag For Car Keys Mobile Phone Credit Cards

**Brand:** defender
**Price:** ¥4942
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your ride and reclaim your focus—because your security deserves the best.

## Quick Answers

- **What is this?** Defender Signal Blocker 2 Pack - RFID Faraday Pouch - Police Accredited Car Key Security Case - Phone Case Signal Blocking Device - Faraday Bag For Car Keys Mobile Phone Credit Cards by defender
- **How much does it cost?** ¥4942 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/61222289-defender-signal-blocker-2-pack-rfid-faraday-pouch-police-accredited)

## Best For

- defender enthusiasts

## Why This Product

- Trusted defender brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Everyday Use:** Magnetic closure and external keyring hook combine convenience with high-tech security—carry it, hang it, or stash it with ease.
- • **Police-Preferred Quality:** Secured By Design certified with reinforced double stitching for premium durability and trusted protection.
- • **Unrivalled Signal Defense:** Award-winning Faraday pouch blocks all wireless signals, safeguarding your car keys and devices from relay theft and hacking.
- • **Stay Focused, Stay Protected:** Seal your phone inside to block notifications instantly, reducing distracted driving and boosting your on-road mindfulness.
- • **Dual-Purpose Security & Safety:** Protect your vehicle from cloning attacks while eliminating phone distractions during driving—two critical risks, one sleek solution.

## Overview

The Defender Signal Blocker 2 Pack is a premium Faraday pouch designed to block all wireless signals including RFID, NFC, GPS, EMF, and cellular networks (3G/4G/5G). Police accredited and double-stitched for durability, it protects keyless car fobs from relay theft and prevents phone distractions by blocking notifications while driving. Winner of multiple Auto Express Best Buy awards, this dual-purpose security case fits most smartphones and key fobs, featuring a magnetic closure and external hook for versatile everyday use.

## Description

Product Description DEFENDER SIGNAL BLOCKER - 2 x PACK Premium Quality Faraday Bag The Defender Signal Blocker is a high-quality faraday pouch; dual-purpose vehicle fob and mobile phone storage pouch. The dual-purpose nature of the Signal Blocker sees it combat two of the biggest security and safety issues: relay attacks on vehicle fobs and distracted driving caused by mobile phone use. Made from unique RPF material Secured By Design Police Preferred Specification High quality, double-stitched design Protects proximity fobs from relay attacks Blocks all phone signals, from calls to Wi-Fi & 3G/4G/5G, also blocks RFID, GPS, NFC, EMF Dimensions: 18.6cm x 11.5cm x 0.6cm Contains educational card insert External keyring hook Protect your Vehicle from Cloning Attacks! Criminals can exploit keyless vehicle fobs by using sophisticated technology to hack into your car’s computer, meaning they don’t even need a key fob to start the vehicle and can drive it away in a matter of minutes. The Defender Signal Blocker will give you confidence when your key fob is inside the faraday pouch, it is protected against any wireless signal attacks from thieves trying to steal vehicles. The specialist RPF material lines the single pouch and provides unrivalled protection, with double-stitched seams ensuring durability. The Defender Signal Blocker provides protection for ALL keyless vehicle fobs. Blocking signals such as RFID/NFC/WIFI/GPS/EMF/GSM/LTE. You can maximise the products performance and life cycle by following the below guidance Do not rip or tear the material. Do not fold or crease the pouch e.g. to fit in a pocket or bag. Do not wash the pouch or subject to rainfall. Discourage Distracted Driving The Defender Signal Blocker can also be used to fight phone usage while driving. Place your phone into the pouch, when sealed the mobile phone cannot receive any calls or notifications, leaving a driver free to focus on the road, free of distractions. Once removed, all missed alerts pull through to the phone within 5 seconds. The Defender Signal Blocker blocks all signals, from calls to Wi-Fi & 4/5G, which removes the temptation to check messages. No notifications, no distractions! Premium Blocking Capability • Reinforced double stitching technique. • No risk of rips or tears with prolonged usage. • Secured by Design Police Preferred Specification - don't settle for lesser quality. Award Winning Protection • Winner of Auto Express Best Buy in 2018, 2019 & 2023. • Shortlisted for First Car Best In Car Product in 2018 & 2019. Dual Purpose • Protection against thwart keyless car thieves who use signal boosting devices to carry out relay attacks. • Once inside a vehicle, the Defender Signal Blocker be used to fight phone usage. External Hook Attachment • Store practically inside your home with the built-in rear hook. • Wear on a lanyard to keep close to you while out and about. • User-friendly design for every day use.

Review: good product - works really well.
Review: Excellent! - Great quality. Unobtrusive but effective. 2 pack gives good value for money. Very pleased with these.

## Features

- DEFENDER SIGNAL BLOCKER - Award winning protection against keyless car crime and distracted driving.
- ULTIMATE RFID PROTECTION - Protects keyless vehicle fobs from keyless car crime, mobile phones and credit cards. Blocks all phone signals, from calls to Wi-Fi & 3G/4G/5G. Also blocks RFID, GPS, NFC, EMF. Fits most smartphones and multiple key fobs.
- PREVENT RELAY THEFT - When sealed inside the pouch, proximity fobs are fully protected from tech-savvy car thieves, ensuring your vehicle cannot be stolen in this manner.
- SAFETY WHEN DRIVING - Place your smart phone inside the faraday pouch to remove any temptation. Notifications can be a huge distraction when driving and it is illegal to use your phone while on the road.
- UK's BEST SELLING FARADAY POUCH - Holds the coveted Police Recognised Standards and voted Auto Express Best Buy 2023.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B3R5FLG |
| Best Sellers Rank | 318 in Automotive ( See Top 100 in Automotive ) 6 in Key Shells |
| Brand | Defender |
| Brand Name | Defender |
| Closure Type | Magnetic |
| Closure type | Magnetic |
| Colour | black |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 4,636 Reviews |
| Handle Type | Top handle (low confidence) |
| Item height | 0.01 centimetres |
| Manufacturer | Defender |
| Material | Polyester |
| Material Type | Polyester |
| Pattern | Solid |
| Style | Wallet Case |
| Style Name | Wallet Case |
| Unit Count | 2 count |

## Product Details

- **Brand:** Defender
- **Compatible devices:** Cellphone
- **Remote control included?:** No
- **Manufacturer:** Defender

## Images

![Defender Signal Blocker 2 Pack - RFID Faraday Pouch - Police Accredited Car Key Security Case - Phone Case Signal Blocking Device - Faraday Bag For Car Keys Mobile Phone Credit Cards - Image 1](https://m.media-amazon.com/images/I/81wOKwwsowL.jpg)

## Questions & Answers

**Q: Can it block EMP?**
A: I suppose that depends on how close you are to the epicentre?
Too close, it and you have been vaporised.

**Q: Can any owners here recommend a strong enough Lanyard to attatch this too? Some are weak as can be**
A: You can buy very strong lanyards from office suppliers or pop into WH Smiths. Some travel agents will give you one for free if you have some health issues. Not thought about this myself as I put it into my travel bag for safety.

**Q: Hi I am useing a iPhone 13 Pro running vpn and mal wear-does the case protect against eavesdropping when the device is turned off**
A: Hi S.C.,
I am no tech guru but if all your privacy settings are set to prevent camera and mic access and the device is turned off then the faraday pouch should add a further level of protection by blocking all radio waves and Bluetooth signals reaching or leaving you device. 
Hope this helps.

**Q: does this block the microphone from working?**
A: It blocks the mobile network signal to the phone so it does not receive or send anything. In theory microphone might work depending on circumstances. Why you would want it to?? 🤷

## Customer Reviews

### ⭐⭐⭐⭐⭐ good product
*by A***R on 18 December 2025*

works really well.

### ⭐⭐⭐⭐⭐ Excellent!
*by H***F on 19 November 2025*

Great quality. Unobtrusive but effective. 2 pack gives good value for money. Very pleased with these.

### ⭐⭐⭐⭐ Signal blocker case
*by R***R on 22 November 2025*

Very pleased with items. Very good case. No issues. Good value for the money.

## Frequently Bought Together

- Defender Signal Blocker 2 Pack - RFID Faraday Pouch - Police Accredited Car Key Security Case - Phone Case Signal Blocking Device - Faraday Bag For Car Keys Mobile Phone Credit Cards
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- Defender Signal Blocker Mini 2 Pack - RFID Blocking Faraday Pouch - Police Accredited Car Key Signal Blocker Pouch - Protection for Keyless Fobs - Works With Remote Entry Keys

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**Shop now:** [https://www.desertcart.jp/products/61222289-defender-signal-blocker-2-pack-rfid-faraday-pouch-police-accredited](https://www.desertcart.jp/products/61222289-defender-signal-blocker-2-pack-rfid-faraday-pouch-police-accredited)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*