GSM 4/6 Gang Extension Plug Bug

The gsm extension plug bug is a fully functional 4 or 6 gang trailing mains socket that conceals a covert 4G GSM bug, delivering continuous real-time audio monitoring for home or office environments.

Auto-Answering GSM Bug with Fully Functional Sockets

Designed for complete operational discretion, this trailing extension lead houses an internal 4G GSM module and a high-performance microphone without compromising its external appearance.

Because it connects directly into any live UK wall outlet, the gsm extension plug bug operates on unlimited mains power, eliminating runtime limits or battery maintenance checks.

When you call the internal SIM card number from any telephone, the device auto-answers silently after approximately one minute of initial mains connection, opening a live audio stream without lights, beeps, or mechanical clicks.

Every socket on the gang strip remains fully operational, enabling appliances, desktop hardware, or lamps to draw power normally, ensuring absolute deception under casual inspection.

Environment Integration and High-Sensitivity Microphone

Equipped with an internal Knowles electret-condenser microphone and integrated digital sound processing, this gsm extension plug bug clearly captures human speech within a 6-metre radius.

The built-in sound processor filters out background electrical hums, ensuring crisp voice reception even if the extension lead is placed under a desk or behind office furniture.

It serves as an ideal solution for monitoring offices, workshops, living rooms, or storage areas where multi-socket leads are a natural feature.

Global Audio Access and Flexible Network SIM Support

Because the unit operates over standard cellular networks, you can dial into the lead from any global location, functioning just like a standard phone call.

The unit is supplied pre-installed with a live EE network SIM card, but the casing can be opened to insert alternative 4G SIM cards if required.

Provided you deploy your surveillance equipment for lawful purposes, the situations that suit using a voice recording device or live listening bug are extensive.

If you require guidance regarding network SIM setup for your gsm extension plug bug, please feel free to contact our expert team today.

Does this gsm extension plug bug still work as a standard multi-way mains extension lead?

Yes. All sockets (4-way or 6-way) are fully wired and functional, allowing you to power computers, lamps, or TV equipment while the audio bug remains active.

How sensitive is the internal microphone on the gsm extension plug bug?

The integrated Knowles microphone captures normal conversational speech within a 6-metre radius, even if the extension lead is tucked underneath a desk or cabinet.

Will the listening bug work if the extension lead is unplugged from the wall?

No. The unit is powered directly by the mains supply and does not contain an internal battery. The main wall socket must remain switched on for continuous live monitoring.

Does the gsm extension plug bug make any noise or light up when I call in?

No. The unit auto-answers incoming calls silently without any flashing LED lights, tones, or internal clicks.

Do I need to put calling credit on the internal SIM card?

The internal SIM card does not require credit to receive incoming monitoring calls from your handset. However, pay-as-you-go network operators may deactivate SIM cards if left completely inactive for long periods.

Can I use an international SIM card or a contract SIM inside this gsm extension plug bug?

Yes. The internal quad-band 4G module accepts standard Micro/Nano SIM cards from any global network operator, including cheap monthly contract SIMs or international roaming SIMs.

How long does the gsm extension plug bug take to become operational once plugged in?

Once connected to a live wall outlet, the internal GSM module initialises and registers onto the cellular network in approximately 60 seconds, after which it is ready to receive live monitoring calls.

• Requires an active telephone or mobile phone to dial the internal SIM number and listen in live.
• Must be plugged into an active UK mains socket that stays switched on; there is no internal backup battery.
• Opening the extension housing to replace or swap the internal SIM card requires a standard Phillips screwdriver.
• Pay-as-you-go SIM cards do not require credit to receive incoming calls, but network providers may disconnect inactive SIM numbers after extended periods without outgoing activity.

• Fully operational 4 or 6 gang UK extension lead that powers external appliances from all sockets simultaneously.
• Concealed 4G GSM audio unit allows worldwide real-time room monitoring by dialing the device’s phone number.
• Continuous 220V–240V AC mains connection provides unlimited operational runtime without reliance on batteries.
• High-sensitivity Knowles electret-condenser microphone captures speech within a 6-metre pickup radius.
• Integrated digital sound processor (DSP) suppresses ambient electrical noise for clean audio clarity.
• Operates in complete visual and acoustic silence with no giveaway lights, tones, or relay sounds during call pick-up.
• Pre-installed with an active UK network SIM card, ready for deployment out of the box.
• Universal quad-band GSM module accepts standard 4G network SIM cards from international providers.
• Ideal covert listening lead for home security, office surveillance, workshop monitoring, or retail back-rooms.

• Device Type: Mains Powered Covert 4G GSM Audio Bug
• Form Factor: Standard UK 3-Pin 4-Gang or 6-Gang Trailing Extension Lead
• Power Input: 220V – 240V AC Mains Supply (No internal backup battery)
• Network Frequencies: 4G / 2G Quad-Band GSM Modem (800 / 900 / 1800 / 1900 / 2100 / 2600 MHz)
• Microphone Type: Ported Knowles electret-condenser with FET amplifier
• Audio Processing: RISC microcontroller with integrated digital sound processor
• Audio Pickup Radius: Up to 6 metres (approx. 20 feet) for standard speech levels
• Socket Functionality: All 4 or 6 sockets fully operational up to standard mains load capacities
• SIM Compatibility: Accepts standard Micro/Nano 4G network SIM cards (EE SIM pre-installed)
• Surveillance Range: Unlimited global listening distance

• GSM 4 or 6 Gang Extension Plug Bug
• Pre-Installed EE Network SIM Card
• Full Operational Instructions
• Technical Support via Phone and Email