GSM Double Wall Socket
Product Code GSW4Installed directly in place of a standard UK double plug socket, this gsm double wall socket conceals a sophisticated 4G audio bug for continuous, unnoticeable room monitoring. Mains-powered for permanent 24/7 readiness, it features a high-sensitivity Knowles microphone with a 6-metre pickup radius, letting you dial in silently from any location worldwide while both electrical outlets remain 100% functional.
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If you've got a question about GSM Double Wall Socket then please fill out the form below or call us on 024 7601 0588. Sometimes, but not always, your email maybe be answered outside UK weekday office hours.
All parcels are discretely packaged and addressed with no mention of Spy Equipment UK or Spy branding. All parcels must be signed for and can't be left at a property without a signature. No shipping is required for Software/Subscription Products
UK Delivery Options
£3.00 - UK Standard (Up To 3 Working Days)£6 - UK Standard (Up To 3 Working Days)
£8.00 - UK Special Delivery (Next Working Day - before 13.00 hours)
£50.95 - UK Express (Next Working Day - before 09.00 hours)
£17.00 - UK Saturday Delivery (before 13:00 hours)
Collected in-store
Europe Zone 1( Express )
£28.00 - Europe Zone (1 to 2 working days )Europe Zone 2 ( Express )
£38.00 - Europe Zone 2 (1 to 3 working days )Europe Zone 3 ( Express )
£44.00 - Europe Zone 3 (1 to 3 working days )Worldwide Zone 1
£50 - Worldwide Zone 1 ( 2 - 4 working days )Worldwide Zone 2
£64 - Worldwide Zone 2 ( 3 - 5 working days )USA & Canada
£37.00 - USA & Canada ( 1 - 3 working days )GSW4
£222.00 Inc VAT£185.00 Ex VAT
The gsm double wall socket is a fully functional UK mains socket housing a concealed 4G GSM module, serving as a permanent listening device for real-time room monitoring in homes or office spaces.
Mains Powered for Continuous 24/7 Surveillance
Designed to be hardwired directly into a standard 230V AC mains ring circuit, the gsm double wall socket eliminates battery limitations entirely.
Connecting directly to mains electricity ensures permanent operational readiness, allowing you to dial into the socket at any time of day or night without retrieving hardware to recharge batteries.
When you dial the internal SIM card number from any telephone worldwide, the device auto-answers silently without lights, tones, or mechanical clicks, opening an immediate, live audio connection.
Because it serves as a direct replacement for an ordinary white plastic wall socket, it blends seamlessly into residential properties, executive offices, and commercial premises.
High-Gain Microphone and Digital Sound Processing
Equipped with an integrated Knowles electret-condenser microphone and digital signal processing, this GSM bug captures clear speech within a 6-metre radius.
The built-in digital sound processor filters out ambient electrical noise, ensuring clear voice reproduction even if the socket is installed at floor level or behind furniture.
Both plug outlets retain 100% full electrical functionality, powering everyday items like computers, lamps, or TV equipment to maintain total deception under casual inspection.
Plastic Casing Signal Integrity and Unlocked Cellular Module
To guarantee optimal cellular signal strength, this unit is built exclusively using high-grade white plastic faceplates. Metal finishes like brass or chrome are deliberately avoided as they create a “Faraday Cage” shielding effect that blocks cellular radio signals.
The internal GSM module is unlocked, allowing you to replace the pre-installed EE SIM with any micro SIM card that delivers the strongest coverage in your deployment location.
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 have questions regarding installation or custom faceplate configurations for your gsm double wall socket, please feel free to contact our expert team today.
Is the gsm double wall socket fully functional for powering household appliances?
Yes. Both electrical outlets function exactly like a standard UK mains wall socket, allowing you to power lamps, computers, and appliances normally while the hidden listening bug is active.
Does the listening bug stay active if the socket switches are turned to the ‘off’ position?
Yes. The internal GSM module is wired directly into the incoming mains feed, ensuring it remains continuously powered and active 24/7 regardless of whether the front socket switches are on or off.
How sensitive is the internal microphone on the gsm double wall socket?
The integrated Knowles microphone and digital sound processor clearly capture standard conversational speech within a 6-metre radius, even if the socket is located behind furniture or near floor level.
Do I need an electrician to install the gsm double wall socket?
Because installation involves connecting directly to live mains wiring (230V AC), we strongly recommend having the unit installed by a qualified electrician or a competent electrical DIYer.
Will the device make any sound or show indicator lights when I call in?
No. The unit auto-answers incoming calls in complete silence without any ringing sounds, relay clicks, or flashing LED lights.
Why is this product only available in plastic faceplates rather than brass or chrome metal?
Metal faceplates create a ‘Faraday Cage’ effect that blocks cellular radio signals, rendering internal GSM bugs inoperable. Plastic faceplates allow radio signals to pass through unhindered.
Can I use my own network SIM card in the gsm double wall socket?
Yes. While supplied with an EE SIM card, the GSM module is unlocked and accepts micro-SIM cards from any network provider offering the best coverage in your area.
What happens if there is a power cut in the building?
Because the bug is mains-powered, it shuts off during a power outage. However, as soon as mains power is restored, the GSM module automatically reboots and re-establishes network connection within one minute.
Do I need calling credit on the internal SIM card?
To receive calls and listen in, no credit is required on the SIM card. However, pay-as-you-go networks may deactivate SIM cards if left completely inactive for several months without outgoing activity.
Will the gsm double wall socket interfere with Wi-Fi routers or other home electronics?
No. The module is fully shielded and operates on standard cellular frequencies, operating similarly to a standard mobile phone without disturbing Wi-Fi routers or electrical equipment.
- Requires a standard mobile phone or landline to dial the internal SIM card number and listen to live audio feed.
- Must be hardwired into a standard UK 230V AC mains ring circuit; there is no internal backup battery.
- We strongly advise using a qualified electrician for installation to ensure safe connection to live mains wiring.
- Supplied with an EE micro-SIM, but unlocked to accept any active network SIM that provides optimum local signal strength.
- Pay-as-you-go SIM cards do not require credit to receive calls, but network operators may disconnect inactive SIM numbers after extended periods without use.
- Only manufactured in plastic faceplate casing; metal faceplates (brass or chrome) block cellular signals and cause operational failure.
- For maximum cellular signal reception, installation into a plastic wall back-box is recommended over deep metal back-boxes.
- Ensure the target socket installation location receives adequate mobile network signal coverage.
- Fully functional UK 3-pin double gang wall socket providing 240V AC power to plugged-in appliances from both sockets.
- Integrated 4G GSM module enables worldwide, real-time room audio monitoring by simply dialing the device’s phone number.
- Direct hardwired connection into the mains ring circuit provides indefinite 24/7 power without battery maintenance.
- High-sensitivity Knowles electret-condenser microphone captures clear human speech up to a 6-metre radius.
- Integrated digital sound processor (DSP) cleans ambient audio frequencies for clear acoustic reception.
- Operates in complete visual and acoustic silence with zero giveaway lights, beeps, or relay clicks during call connection.
- Internal GSM module remains active and powered regardless of whether external socket rocker switches are on or off.
- Supplied with a pre-installed, activated EE network micro-SIM card, ready for immediate deployment.
- Unlocked quad-band GSM module accepts micro-SIM cards from any global cellular provider.
- Device Type: Mains Powered Hardwired 4G GSM Covert Audio Bug
- Form Factor: Standard UK 3-Pin Double Gang Wall Socket (BS 1363)
- Power Supply: Hardwired 200V – 240V AC Mains Circuit (No internal battery required)
- Network Compatibility: Quad-Band 4G LTE / GSM (850 / 900 / 1800 / 1900 MHz)
- Microphone Type: Ported Knowles electret-condenser with FET amplifier
- Audio Processing: RISC microcontroller with integrated Digital Sound Processor (DSP)
- Audio Pickup Radius: Up to 6 metres (approx. 20 feet) for standard speech levels
- Switch Independence: Bug remains fully powered regardless of external socket switch positions
- SIM Compatibility: Micro-SIM slot (unlocked for any global network provider)
- Faceplate Material: RF-transparent high-impact white plastic
- GSM Double Wall Socket (White Plastic UK Socket with Integrated 4G Bug)
- Pre-Installed EE Network Micro-SIM Card
- Full Instructional Operational Guide
- Technical Support via Phone and Email






