GSM Bug UK extension lead spy bug listening device Fully working (Upgraded)

Exclusively upgraded in January 2025, this fully functional 4-gang extension lead discreetly houses a powerful GSM listening device. The upgraded module offers enhanced microphone sensitivity and superior GSM reception, manufactured and hand-assembled to order in the UK. Unlike cheaper imports, this device is designed for professional-level performance and long-term use.

Plug it in, call the SIM number provided (or insert your own), and start listening instantly—from anywhere in the world. Ideal for discreet room monitoring and remote surveillance.

🔍 Key Features

• ✅ Fully functional 4-gang UK extension lead – standard design
• 🎙️ Sensitive microphone with 8–10 metre (25–30ft) pickup range
• 📶 Built-in Quad-Band GSM Module – compatible worldwide
• 🔄 Auto-call back feature (sound activation via SMS)
• 🔌 Mains powered – supports unlimited monitoring duration
• 🛠️ Handmade in the UK – built to order
• 📲 Works with most GSM SIM cards – Vodafone, Virgin, EE (not O2 or Three UK)

📦 What Makes This Listening Device Unique?

This covert surveillance tool is exclusively manufactured for UK Spy Gear. Each unit is tested and assembled to ensure superior microphone performance and clean audio pickup, eliminating the buzz or static often associated with mass-produced alternatives.

Simply insert the pre-fitted SIM card or use your own, plug the lead into any mains socket, and dial in to begin listening live. No software, no setup—just plug and listen.

Auto Callback Function

The voice-activated mode allows the device to automatically call your phone when sound is detected in the room. This means you won’t have to check in manually—perfect for alerting you to unexpected activity while you're away.

🌍 Global Listening from Anywhere

Monitor conversations remotely from any location in the world. The device activates silently upon receiving your call and transmits live audio within its pickup range. Audio is clear, filtered, and buzz-free—ideal for home, office, or storage surveillance.

Features both incoming and outgoing call support, with simple SMS setup to enable or disable voice activation remotely.

📡 Network Compatibility

• ✔ Compatible Networks (UK): Vodafone, Virgin, EE
• ❌ Not Compatible: O2 or Three (3G-only networks)
• ✔ Global Compatibility: Works with most GSM networks worldwide

We recommend choosing a SIM card with strong signal reception in your area. Be sure to add credit to keep the SIM card active.

🚚 Handmade to Order in the UK

All units are assembled and dispatched from the UK. Each device is built to order, ensuring maximum quality control and performance assurance. Beware of cheap imported imitations which may not deliver reliable audio pickup.

⚠️ Legal Notice

Warning: This product must not be used for any illegal purpose. Covertly recording individuals without their consent is illegal and may result in prosecution. Always ensure you comply with local and national surveillance laws.