Duplex secret communication set

Original price was: €500.00.Current price is: €490.00.

Complete system for covert communication and surveillance


Duplex secret UHF communication system

With spy micro ear piece – UHF in-ear receiver MRF400-C and pen voice transmitter


The covert communication system is formed by the spy micro ear piece UHF receiver, the UHF FM microphone pen transmitter and the UHF transceiver.
The working distance is up to 500 meters in open space. This complete system provides a covert two way spy equipment in UHF frequency that can be used in any situation where you need to have a hidden conversation, non jamming and undetectable.

What is it for:
The UHF FM invisible communication system can be used in various situations, like politicians speech, TV shows, surveillance, presentations or to cheat on the hardest exams.

How it works:
If you need to have a covert communication, all you have to do is to put the spy ear piece into your ear canal, in order to hear your partner and to have the microphone pen in your hand or on the chest pocket, in order to speak to your partner. The partner will use the transceiver in order to receive your signal and to transmit information back to you. Your partner can be at a distance of up to 1000 meters in open field or less (in a building area).

The Duplex discrete UHF communication system package will contain:

  • Wireless UHF Micro earpiece FM receiver MRF400-C with one A10 zinc-air battery
  • UHF FM spy pen voice transmitter, with charger
  • Compact hand-held UHF transceiver with: antenna, 1500 mAh Li-ion battery, belt clip, earphone/mic, battery charger and user manual.


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