Description
GSM EXTENSION LEAD:
This is a fully functioning, mains powered Extension Lead, which is powered from the mains electrical supply and allows you to simply call the Extension Lead, The unit can be used as a fully functioning Extension Lead allowing you to use all 4 sockets to be inserted while still functioning as a mains powered hidden listening device.
Remote Listening:
Once the SIM card is active, the user can call the device’s phone number from any location. The device will automatically answer the call silently, allowing the caller to listen to the surrounding environment in real-time.
Real-Time Monitoring:
Provides immediate access to audio from the device’s surroundings upon calling.
Listening Time :
Unlimited
Microphone Range :
Approx 20- 25 feet
Concealed:
The internal transmission mechanism is not visible even under close examination.
Microphone Range:
Microphone sensitivity distance approx. 25 feet, Crystal clear voice.
Remote Access:
The user can dial into the device (like calling a phone number) to listen to the surrounding sounds in the room.
SIMPLE TO OPERATE:
Simply plug the extension lead into wall socket switch on and wait 30 seconds and then just the dial the associate number inside the lead and hear what’s happening.
Features:
• Fully Functional Extension Lead
• NO lights or moving parts
• Mains Powered
• This is a UK British General Extension Lead is made in the UK and with great craftmanship it’s not noticeable to the target area.
• Best for the person who is away for a long time and needs to listen when away from the office/home or meetings.
• 20- 25feet microphone
• Works in countries with 3G Coverage
• No humming noises
• No internet needed
Specifications:
• fully functional 4 way extension lead
• Quad-band worldwide operation – 900 | 1800 | 1900 | 1950 MHz
• 4G network compatible
• No batteries
• Handmade in the UK
• Unlimited Standby
• Unlimited Listening
• Microphone Range 20-25feet
Contents:
• 4 way extension lead
• Sim card
• User manual
Item Details
GSM Extension Lead :
The GSM Extension Lead is a discreet, mains-powered listening device concealed within a fully functional 4-socket extension lead. Designed for covert surveillance and security monitoring, this device allows you to remotely listen to surrounding sounds simply by calling the SIM card number inside the unit. With no lights, no moving parts, and seamless integration, this product blends perfectly into any home or office environment.
Completely Concealed & Undetectable:
Unlike other surveillance devices, this GSM Extension Lead has no external indicators that reveal its hidden function. Even under close inspection, the transmission mechanism is completely concealed, making it ideal for covert monitoring.
Microphone Sensitivity & Audio Quality:
Equipped with a high-sensitivity microphone, the device captures sound within a 20-25 feet range, delivering crystal-clear audio without interference or humming noises. Whether placed in a home, office, or meeting room, it ensures reliable voice clarity for effective monitoring.
Remote Listening:
Using a built-in GSM module, the device allows you to dial into the unit from anywhere in the world. When calling the SIM card number inside the extension lead, you will gain access to live audio from its surroundings. No additional setup is required, making it one of the easiest covert audio surveillance tools to operate.
No need of Internet :Â
This device is using a GSM module inside so there is no need for any WiFi or router.
Features :
• Fully functional fully functional extension lead
• No sounds/lights or moving parts
• Made in UK with great craftsmanship
• 20-25ft Microphone range
• Unlimited Listening
• Easy To Use
• No need of any technical background
• Ideal for the person who is away long time
Specifications:
• Mains Powered
• Quad-band worldwide operation – 900 | 1800 | 1900 | 1950 MHz
• 4G network compatible
• No batteries
• Handmade in the UK
• Unlimited Standby
• Unlimited Listening
• Microphone Range 20-25feet
Contents:
• 4 way extension lead
• Sim card
How It Works
- Insert the SIM Card – The device comes supplied with a pre-installed SIM card.
- Plug Into Any UK 3-Pin Mains Socket – The extension lead will work as a normal power supply while being powered for surveillance.
- Dial the SIM Card Number – Call the hidden SIM number from any phone, and the device will automatically answer, allowing you to listen in real-time.
- Monitor Conversations & Sounds – Enjoy clear, live audio from the surrounding environment.
What’s Included in the Box?
✔ GSM Extension Lead (Fully Functional)
✔ Pre-installed SIM Card
✔ User Guide
Perfect for Security & Surveillance Needs
This GSM Extension Lead is a discreet and reliable solution for those who require remote monitoring without raising suspicion. Whether you’re keeping an eye on your home, office, or private meetings, this device ensures high-quality, real-time audio surveillance without any interruptions.
🔹 Simple to Use – No Technical Knowledge Required
🔹 No Maintenance – No Charging or Battery Replacements
🔹 Works in Any Location with 3G Connectivity
Questions & answers
Does the extension lead work ?
Yes, all the sockets will, work along with listening device.
What is sensitive of the microphone inside inside the extension lead ?
The listening device has been built with high grade workmanship. Not allowing anyone to suspect there is a listening device inside. The microphone range is APPROX 20-25feet.
Does it record as well ?
No , This is a live listening device only.
Can I use this abroad if I have same socket as UK?
Yes , One can use this another country is the plug is same connection as the UK., Simply change the sim inside the extension lead.
How Can I Install The Sim Card?
To install the Sim card in the socket lead listening device you will need to unscrew the casing. THIS MUST BE ONLY DONE WHEN REMOVED FROM THE MAINS. Once the casing is removed you will see Sim Card slot where you insert the Sim Card.
MICROPHONE RANGE:
Microphone sensitivity distance approx 25 feet, Crystal clear voice.
 Is there any moving parts or lights or sounds?
There are no external or internal switches on this recording device. Or any visible lights
 How Do I Start Listening ?
As soon as you receive the plug adapter straight from box the Extension Lead is working simply remove from its packaging and plug into the wall and you call the number inside the Extension Lead and you are listening to the voices or sounds.
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