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N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic
  • N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic
  • N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic
N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic

N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic

£40.00

N9 GSM Audio Monitor – Voice-Activated Call-Back, Dual Mic

Small. Powerful. Discreet. The Micronic N9+ Advanced GSM Audio Monitor is a compact, matchbox-sized listening device engineered for reliable real-time audio surveillance. Built with quad-band GSM technology, a high-gain antenna, and dual microphones, the N9+ delivers clear sound within a ~5 metre radius and can silently answer calls so you can listen in remotely. Supplied with a blank O2 nano-SIM for out-of-the-box testing, the unit also supports EE, Vodafone and most PAYG or contract SIMs.

Ideal for short- to medium-term monitoring, the N9+ includes sound-activated call-back and optional SMS alarm features — automatically calling your preset number when noise exceeds the trigger threshold. The device also includes a unique IMEI number and optional basic tracking capability. Lightweight and easy to conceal, the N9+ is a discreet all-in-one solution for home, vehicle or asset monitoring.

  • Quad-Band GSM Audio Monitor – Works on 850/900/1800/1900 MHz for broad network compatibility
  • Voice-Activated Call-Back – Automatically dials your number when sound/voice is detected
  • Dual Microphones & High-Gain Antenna – Improved sound pickup and reception for clearer audio up to ~5 m radius
  • Nano SIM Ready – Supplied with blank O2 nano SIM for immediate testing (top-up required for call-back credit)
  • Compact & Concealable – Smaller than a matchbox for easy, discreet placement
  • IMEI Registered – Unique IMEI for device identification and optional tracking usage
  • Rechargeable Battery – 3–5 hours continuous listening; 3–5 days standby depending on network and settings
  • Fast Recharging – Full recharge in ~60–120 minutes
  • No Visible Indicators – Silent operation with no flashing lights when answering calls

What’s Included

  • N9 GSM Audio Monitor (Advanced)
  • Blank O2 Nano-SIM (requires top-up for call-back airtime)
  • USB Charging Cable
  • User Manual

Dimensions (LxWxD)

  • Approx. Matchbox sized (compact)
Shipping & Returns

All orders are shipped fully tracked.

Please see our Shipping & Returns Policy for more information on delivery.
Usage Disclaimer

This product must not be used for any unlawful purposes. Unauthorized audio or video recording of individuals without their knowledge and/or consent may be a criminal offense under applicable laws. Users are solely responsible for ensuring compliance with all relevant regulations.
Our Story

We launched in the UK with a single aim: deliver dependable, discreet surveillance gear, without the hype. Fed up with flimsy “spy toys”, we source pro-grade tools that are tested in the field, easy to use, and made to endure. We equip investigators, small firms, and everyday people to protect what matter, always lawfully and responsibly. Orders ship fast and in plain packaging, with clear guides and friendly support from folks who actually rely on this kit.
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Frequently asked questions
Q: How does the N9 GSM Audio Monitor work?

The N9 accepts a nano SIM and uses the GSM network to receive calls. Dial the device’s SIM number and it will silently answer, allowing you to listen to live audio via its dual microphones. It also supports voice-activated call-back, so it can automatically ring your preset number when it detects sound.
Q: What SIM cards and networks are compatible with the N9?

The N9 is quad-band and compatible with major UK networks. It is supplied with a blank O2 nano-SIM for testing but also works with EE and Vodafone (PAYG or contract) and many third-party SIMs. Network performance and battery life depend on local signal strength.
Q: How long does the battery last on the N9?

Battery life varies by usage: expect around 3–5 hours of continuous listening and 3–5 days on standby. Using the sound-activated call-back conserves power and extends standby duration. Full recharge takes approximately 60–120 minutes.
Q:Can the N9 be used for tracking?

The N9 includes a unique IMEI and limited tracking functionality via the cellular network (LBS-style). It’s primarily an audio monitor, not a precision GPS tracker — use its IMEI/network features for basic location checks rather than exact GPS positioning.
Q: Is it legal to use a GSM audio monitor like the N9 in the UK?

Yes you may own and use the N9+ for legitimate security or property monitoring. However, secretly recording or monitoring private conversations without the consent of those involved can break UK law. Always ensure your use complies with data protection and privacy regulations.

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