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back home > Jammers > JDM-01 Jammer signal blocker for audio recorders
back home > Speech protection system > JDM-01 Jammer signal blocker for audio recorders
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Jammer signal blocker for audio recorders

Blocks more than 99% of the recording systems and covert listening devices: voice recorders, smartphones, gsm transmitters, eavesdropping tools using both analog and digital microphones etc.

The JDM-01 is mainly used to protect discreete business conversations, conferences requiring a high level of secrecy, as well as confidential speeches of any kind, by blocking all audio listening device microphones within its range. More generally the equipment is used as an effective prevention from the unauthorized recording and audio eavesdropping operations.

All type of analog voice recorders, micro-digital recorders, smartphones, old mobile phones, wireless microphones, GSM bugs and many other spy devices, will be inevitably rendered harmless thanks to this high-tech electronic tool.


The jammer JDM-01 has an anonymous design so that does not raise suspicions and can be used in two ways: stationary or mobile. In the first option it can be left for example in the office, directly powered by the 220V mains, or placed near a telephone set and thus simulate a common object or equipment. In the second case it works powered by battery and can be carried anywhere to oppose to any audio spying devices working in different circumstances to record interviews, outdoor meetings, two way communications and so on.

A very point of strength of the JDM-01, compared to other similar audio jammer, is that it does not emit any noise or audible sound from the human ear while is doing his job.

In order to provide more convenience and saving time, the device is also equipped with a small remote control for starting of the jamming operations from the distance.


  • Maximum range: unspecified (depending on the wiretap, take the range up to about 10 meters);
  • Operational direction: 60° in the horizontal and vertical plane + wave reflected from the
    walls and windows;
  • Power supply: built-in battery + external 110-230V mains adapter;
  • Battery work time: up to 6 hours;
  • Operating range: from 0 ° to + 40 ° C (32-104 Fahrenheit)
  • Charging time: 6-8 hours;
  • Weight: 7 kg;
  • Size: 44 x 33 x 10 cm.


Many European countries ban the sale within the UE. Check the regulations in force on its own territory before proceeding with the information request.

(on demand)


Watch the JDM-01 in action!


Our support doesn’t end after the purchase. Our technicians will be at your disposal at all times for the resolution of any problems or explanations, recommending on the best use of the product.

Our after-sales consultancy provides the following services:

  • Direct consulting for the best solution of the problem
  • Assembly instructions and product operation
  • Service parts, programming etc.

Order or Ask Informations about this product:


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Disclaimer: The customer is responsible for the knowledge of the laws that rule the use of these devices in his country.

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Central Office: Via Umberto Terracini, 47 - 70029 Santeramo in Colle (BARI) ITALY - tel. +39 080 3026530 - tel. +39 080 43730893 - fax +39 080 40731187 - Whatsapp: 3457502269
Branch Office Milan: Via Roberto Lepetit, 8/10 - 20124 Milan tel. +39 02 00696593 - fax +39 02 00696301 - WhatsApp 3457502269
Branch Office Rome: Via Antonio Salandra, 18 - 00187 Rome tel. +39 06 42272299 - WhatsApp 3457502269
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