Triple-Shielded Signal Blocking Pouch for Mobile Phones
The Leblok Faraday Phone Bag provides complete protection against hacking, tracking, and unwanted wireless access. It features three layers of advanced RF shielding fabric, providing a verified Faraday enclosure that blocks Wi-Fi, Bluetooth, GPS, 4G, 5G, and RFID signals. This design also delivers EMP protection through triple-layer shielding – a level of performance rarely achieved in standard Faraday pouches.
Made from waterproof, rip-stop fabric, the bag combines durability with dependable signal isolation. Ideal for cybersecurity professionals, government use, and privacy-conscious individuals.
How Signal Isolation Works
Not all Faraday bags provide the same level of isolation. Our guide explains how Faraday bags achieve effective signal isolation, including why construction and shielding layers matter for Wi-Fi, Bluetooth and cellular signals.
If you have specific questions about phone protection, battery behaviour or testing methods, visit our frequently asked questions.
Key Features
- Genuine triple-layer RF shielding for total isolation
- Protects against EMP events and signal interference
- Blocks all wireless and RFID communication
- Prevents tracking, hacking, and data theft
- Velcro security band for double closure
- Tight security seal preventing signal leak
- Durable and hard-wearing
- Made from waterproof fabric
- Designed and manufactured in the UK
Product Construction
A multi-layer of ultra-high RF shielding fabric is sealed together with high integrity bonding, and finished with superior stitching.
How to use:
- Insert the phone/device into the case
- Fold over top tab twice and secure to velcro strip
- Enjoy the total shielding of your device
Independently tested to ASTM D-4935-10 and IEE 299-006 Standards at the University of the Armed Forces (Department for RF, Microwaves and RADAR), Germany.
Blocks electromagnetic pulses, EMF, RF and RFID frequencies including:
- TEMPEST military spying system
- Cellphone hacking 900OMHz
- GPS Tracking 1176.45 MHz
- Wi-Fi and Bluetooth 2.4GHz/5GHz
- 4G 800MHz/2600MHz
- RFID Defence 433MHz
- Zigbee 868MHz-2.4GHz
*Note that this product also shields your device from airport
security scanners.
Product Dimensions (when closed)
Large: H 165mm x W 255mm
Medium: H 170mm x W 120mm
Looking to secure larger electronics?
Our Faraday Laptop Bag provides triple-layer EMP protection for laptops and other larger sized devices.
Compare Faraday Bags
| Product | Device Type | Size | Price (ex. VAT) | View Product |
|---|---|---|---|---|
| Faraday Laptop Bag | Laptops, Tablets, Radio Equipment | 480mm x 370mm | £78.33 | View Product |
| Faraday Tablet Bag | Tablets & small devices | 355mm x 260mm | £61.08 | View Product |
| Faraday Phone Bag | Mobile phones & key devices | 170mm x 120mm / 165mm x W 255mm | £44.28 – £53.59 | You’re viewing this product |
Watch Leblok Faraday Bags in Action
See how Leblok Security’s range of Faraday bags including the Key Fob, Phone, Tablet, and Laptop models provide complete signal isolation and durable waterproof protection.
Frequently Asked Questions
How does the Faraday Phone Bag protect my smartphone?
The Faraday Phone Bag isolates your mobile device from all wireless communication. Its triple-layer conductive shielding fabric provides over 100 dB attenuation across WiFi, Bluetooth, 4G, 5G, and GPS frequencies, preventing tracking, hacking, or unauthorised data transmission.
Does it protect against electromagnetic pulses (EMP) and EMF exposure?
Yes. The Faraday Phone Bag’s triple-layer shielding fabric offers verified attenuation against EMP, EMF, RF, and RFID signals. Testing to ASTM D-4935-10 and IEEE 299-2006 standards confirms its performance for both civilian and professional applications requiring electromagnetic isolation.
Will my phone’s battery drain faster while inside the bag?
Modern smartphones typically reduce radio activity when isolated, so battery drain is minimal. Some older devices may continue searching for a signal, resulting in slightly faster discharge, but this does not affect device function or safety.
Can I use the Faraday Phone Bag during travel or daily commutes?
Absolutely. Compact, lightweight, and made from water-resistant rip-stop fabric, the bag is ideal for travel, commuting, and professional fieldwork. It ensures your personal data and location remain private even in high-surveillance or high-interference environments.
What level of shielding performance does it provide?
The Faraday Phone Bag achieves over 100 dB attenuation at 2.4 GHz and 5 GHz (WiFi and Bluetooth) and equivalent shielding across cellular and GPS frequencies.
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