Defender Signal Blocker - Black


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The Defender Signal Blocker is a high quality mobile phone pouch that is lined with special RPF material; when a phone is sealed inside, a mobile cannot receive any calls or alerts whatsoever, discouraging phone use while driving and removing the distraction that notifications can create.

Available in Black or Grey and large enough to fit all modern smartphones, the pouch takes just 5 seconds to block/unblock a signal from insert/removal, meaning the Defender Signal Blocker is also ideal for discouraging phone use in a variety of non-driving situations, from classrooms to cinemas.

The Defender Signal Blocker’s RPF material also successfully protects keyless car fobs from RFID interference devices and prevents the skimming of contactless cards and passports by digital pickpockets.

Model OT01119
Box Quantity 1
Brand Defender
Colour Black
Pouch Material 420D Polyester
Blocking Material RPF
Blocks Calls, SMS, Wi-Fi, 4G, Bluetooth®, GPS, RFID, NFC
Dimensions 185 x 115 x 10 mm
Stock In stock

As seen on BBC One's Rip Off Britain!

Product Details

The Defender Signal Blocker is our latest road safety innovation, primarily designed to discourage phone use behind the wheel, creating safer drivers and safer roads across the UK.

The Defender Signal Blocker is a mobile phone storage pouch that is lined with special RPF material; when sealed inside the pouch, a mobile phone cannot receive any calls or alerts, thereby blocking the temptation for a driver to use or check their phone and eliminating the distraction that an alert can create.

Large enough to fit all phones and including a handy insert card that provides information on the updated laws on phone use while driving, the pouch also protects phones from scratching that may occur in the glovebox.

The Signal Blocker isn’t just limited to use while driving; the pouch can be successfully used in any situation that you don’t want your phone to go off, be it at work or school, in the cinema, at a function, attending a sporting event, or even just to guarantee conversation in the pub!

The intelligent RPF blocking material also possesses the capability to block RFID signals transmitted by contactless cards, modern passports and keyless car fobs, thwarting digitally savvy thieves and identity fraudsters.


  • Mobile phone storage pouch
  • Blocks all calls and alerts
  • Blocks temptation and eliminates distraction
  • Fits all size phones
  • Blocks calls, SMS, Wi-Fi, 4G, Bluetooth®, RFID, NFC & more
  • Signal blocks & reappears within 5 seconds of insert/removal
  • Multiple uses, from classrooms to cinemas
  • Also blocks RFID – protecting keyless car fobs, contactless cards and passports
  • Available in Black and Grey