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The Extension Lead Listening Device is a Professional grade remote listening device. It is concealed in a mains Extension Lead and is powered by the mains supply.


Wireless Communication – plug in and listen remotely

Uses a SIM Card - just call the device from anywhere in the world

Listen in - to the surrounding sounds and conversations using its built-in microphone

Security and Peace of mind – can be used to help ensure the safety and security of others

Ultra-clear sound pick up - leading audio quality for hearing everything

Mains Powered - no recharging required, long term surveillance with ease

Made in the UK - trusted by professionals, security agencies and the public

Advanced Features - includes sound alerts by text message and anti-counter surveillance technology to remain hidden

4G Coverage - Works seamlessly with the latest 4G mobile networks and is also compatible with 2G and 3G for reliable connectivity

✔ Recorder kit and accessories available separately for recording purposes.


Experience the combination of convenience and security with our innovative extension lead listening device. This versatile solution not only offers multiple mains sockets to power your devices but also incorporates a discreet surveillance device for audio monitoring.


Take your power outlets to the next level and enjoy peace of mind with this dual-function solution. Its sleek design and advanced surveillance technology enable you to discreetly monitor audio surroundings while benefiting from the convenience of multiple power outlets.


Upgrade to our extension lead listening device and take full control of your power and security requirements with one intelligent device.


The device works similar to a mobile phone: the device itself does not need credit to receive calls. For the optional feature where the device can send you an SMS Sound Alert, the SIM Card in the device would need some credit, which can be added online at the network providers top-up website. 


Available in a discreet white colour for seamless integration into any environment.

Extension Lead Listening Device

Order now, ships 21 Oct
    • High Quality Audio Surveillance
    • Uses 4G Network (it is also compatible with 3G and 2G)
    • Call phone number to listen to the audio in the room the device is installed
    • Powered from the mains supply for long term surveillance
    • Fits standard Single mains plate housing for easy replacement
    • Integrated SIM Card Included (replaceable during installation if needed)
    • Instructions and User Guide include


    • Certificate of Authentication: Verifies that you have a ProSpyLab authentic product
    • Quality Control Certificate: Confirms adherence to quality standards.


Why Choose us...

  • Designed and Made in the UK - By our expert team of Engineers

  • Quality Assurance - Each device is fully tested and ready to use

  • 1-year Manufacturer Warranty - Included in each purchase

  • Fast Shipping - Free Tracked 24 UK shipping. International options also available. 

  • 14 day returns period - If you are not satisfied 

  • Customer Support - UK based customer support here for you if you have any questions 

  • Professional grade devices at excellent prices - certificate of authentication included

“Worked out of the box, I cannot tell you how pleased we are to get one that works so well.”
The audio is so clear and the reception is great, thank you! I've tried other listening devices in the past, but none compare to the quality I experienced with this device. It's truly remarkable.
“Please send our thanks to support... the advice was spot on”

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