Micro bug listening device using external microphone


Micro bug listening device using external microphone


In small rooms or crowded places, we need a small bug, and even smaller and thinner microphone.

55 in stock

SKU: EXTUHF Category:


A micro bug listening device for difficult crowded places using external microphone.

Usually, by using a micro bug listening device, we do our best to conceal it.
There are many places where you may conceal a listening device, but sometimes there may be a problem.
In small rooms or crowded places, we need a small bug, and even smaller microphone.
In general, we want to conceal the bug itself – and leave only the microphone outside the hidden place.
If you may hide it in a drawer for example, a simple internal microphone may let you down.
This micro bug listening device will help you to hear loud and clear voices from distance, using an external microphone.
Assuming that you conceal it in a drawer or even a book, and the external microphone is almost unseen.
You may use your receiver or one of our receivers, and listening from distance.
This is a frequency stabilized micro bug listening device, meaning that if you touch the antenna, there won’t be any drift.
The estimated distance is about 300m in urban areas, and about 500-600m LOS (Line of sight).

We also sell 3 different receivers that are matching the spy bug VOX and you may find them here:

Transceiver FM UHF extremely sensitive

UHF Receiver stabilized by quartz 418 or 433 MHZ

UHF professional receiver 433mhz detachable antenna


  • Battery: 9V
  • 4mm Ø external microphone on 2″ cable
  • Board Dimension:  only 1 cm X 2 cm!
  • Transmitter’s frequency range: NFM (UHF) 433.6-433.9MHz or 418MHz STABILIZED.
  • Penetrates through walls and ceilings.
  • Very easy, no time installation.
  • Its microphone is so sensitive, that you pick up a whisper from about 30sq.ft (100sq.m) radius , crystal clear.


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