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The USB Plug 4G Listening Device is a Professional remote listening security device. It is concealed in a Plug 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.


Introducing the USB Plug 4G, a  surveillance solution concealed within a Mains USB Plug. This device empowers you with surveillance capabilities, all while seamlessly tapping into the power of your mains supply.


Prepare to redefine remote surveillance as you know it. By simply dialling the phone number linked to the embedded SIM card, you can instantly access real-time audio from the USB Plug 4G, granting you discreet monitoring abilities no matter where you are in the world.


Sound Alerts: Stay informed and in control with integrated sound alerts. Through strategically placed sensors, the device notifies you of any significant audio activity in the surrounding environment. From sudden loud noises to whispers, you can customise the alerts to suit your preferences. This feature guarantees you never miss a critical moment.


Microphone Gain Selection: Tailor your audio experience to perfection. 


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. 


Our cutting-edge technology delivers a seamless fusion of functionality and convenience. Safeguard your security measures or keep a watchful eye on your property effortlessly. Experience the tranquillity that accompanies having a covert surveillance solution readily available at your fingertips.


Unlock the full potential of mains powered surveillance with the state-of-the-art USB Plug 4G. Don't hesitate, order now, and take confident control of all your monitoring requirements.


USB Plug 4G Listening Device

Order now, ships 21 Oct
    • High Quality Audio Surveillance
    • Call phone number to listen to the audio in the room the device is installed
    • Designed and Manufactured in the UK
    • 4G, 3G and 2G Network Compatible
    • High Quality Audio Surveillance Device
    • Enhanced Ultra-Clear Audio
    • Selectable Sound Alerts
    • Integrated Micro Sim Card (UK included)


    • 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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