대화 녹음, 녹취 방지장비   /해외용



The Stealth Sound Barrier (SB2400)

The Most Advanced Total Speech Protection and Audio Jamming System


The Stealth Sound Barrier provides the total protection against:

·      Digital and tape voice recorders

·      Voice recorders built-in cellular phones

·      Laser Monitoring Device

·      Wired and wireless microphones

·      Third person listening

·      Stethoscopes, wall microphone, etc.


본 장비는 대화, 녹취방지 전문 장비이다.

기본적으로 대화 참가자는 공급된 적격의 이어폰을 착용하고 대화, 회의에 임할 수 있다.

본체 또는 회의실 등에 기존 설치된 음향 시설을 이용할 수 도 있으며 도청은 물론 어느 장비로도 절대로 대화 내용을 엿듣거나 녹음, 녹취가 불가능한 전문장비이다.

일례로 같은 회의실에 몇 사람이 있더라도 본 장비에서 공급하는 별도의 이어폰을 착용하지 않는 한 앞사람의 대화 내용도 알아듣지 못하는 놀라운 효과를 발휘하고 있다.

미국 등 선진국에서 앞서 많은 호응을 얻고 있다.

도청,녹음 등 불법 행위에 의한 어떤 유형의 공격에도 100% 대응 가능하다.

The Stealth Sound Barrier is the most advanced and unique system to provide total protection for human’s speech. Not all listening devices can be detected by existing methods. Remotely controlled radio microphones, wired microphones, passive resonators, miniature voice recorders – practically all these devices cannot be detected by the conventional methods. Even a modern cellular phone may contain a digital voice recorder; this means that any phone lying on the desktop or in a pocket could be used by an adversary to record a conversation or transmitting any acoustic information.

Bearing the above points in mind, it is extremely important to have a reliable device protecting private conversations not depending on their level of importance. The concept of The Stealth Sound Barrier is based on generating audio interference produced simultaneously with a human’s speech. The volume of this interference is higher than the level of a person’s voice; therefore neither a listening device nor a recorder is able to pick it up the actual human speech.

The unique audio interferencecannot be cleared by any noise-clearance methods. At the same time the produced interference does not create any inconvenience to the participants of the negotiation who wearing to the headsets connected to it. The Stealth Sound Barrier headset allows users to hear each other with crystal quality.

It combines the features of our unique speech protection system, Druid-D06, and a professional electric white noise generator, DNG-2300, to provide the perfect protection of human speech to prevent eavesdropping activities and the third person listening. The two main units work individually or simultaneously with the mixed acoustic interference for increasing the effect..


The communication unit generates special scrambled audio interference which cannot be cleared by any noise-clearance methods simultaneously with the human speech and allows only the users with headsets or headphone and microphone through its communication ports communicate clearly. Even a recorder carried by a participant of the conversation or a third person near the participants can not pick up the actual conversation.


The digital white noise generation unit can be use as a standard white noise generator with transducers and Omni-speakers and can mix with the scrambled audio interference from communication unit to provide more secured sound barrier around the room.


The Stealth Sound Barrier system can be installed in the audio system rack in the conference room or in any portable rack for mobility. It can be customized to provide the perfect solution for any environment and purpose.


·      Professional system for protecting speech between up to 24 people (Standard).  – Can be added more users by 24

·      Protects against any third person listening and all known methods of listening, including all types of radio microphones, stethoscopes, voice recorders, passive resonators, wired microphones, etc.

·      Absolutely harmless to your health – no microwave reflections or ultrahigh sound noise

·      Compared to a white-noise generator, The Stealth Sound Barrier provides a much higher level of protection; Acoustical white noise does not jam digital voice recorders completely even at a high volume, and the users must bear the inconvenient white noise too.

·      The system can be installed in any standard 19” Rack with the audio system in a conference room or in a Portable Rack for easy transference. it can be customized for any purpose.

·      Powered byAC 110~220 V

·      The system can be used in any situation; it is especially valuable when conducting highly important negotiations in an unknown environment;

·      Can be used the digital noise generator function only to prevent  listening though devices that cannot be detected by conventional countermeasures and installed around the perimeter of a room – wired wall microphones, contact microphones, AC outlet transmitters and window systems based on the reflection of laser/infrared/microwave beams. It is an excellent addition to high level countermeasures.

·      Can be customized the total acoustic barrier for any environment and purpose.


·         Type of Noise

o       Speech Protection: Distortion + Reverberation in a random sequence – 24 channels (Standard)

o         White Noise Generator: Non-filterable digital acoustic noise - 250-5000 Hz


·         Output

o         Communication Port : 24 (Standard) – Expandable to by 24 ports and up by the order

o         Noise Generator unit output: 3 Channels (70 W/Ch)

§          4 Built-in speakers

§          Output capacity for Transducer( > 24) and Omni-Speaker (> 6)

§          RJ11 Type  - 12 (Standard)


·         Standard Rack (19”) – Can be installed in any optional portable rack

o         18.75" Rackable depth

o         Lightweight polyethylene construction

o         Front & rear rack rails

o         Threaded field replaceable 7mm zinc plated steel rack rails

o         Locking lids

o         Heavy duty twist latches

o         Comfortable recessed side handles

o         Heat treated 10/32 bolts with protective washers included

o         Interior Front Rail to Rear Rail Distance: 16.5"

o         Interior Front Rail to Rear Lid: 18.25"

o         Interior Lid Depth: 2.25"

o         Exterior: 13.5" x 22" x 22.375"

·          Power: AC 110 V ~ 220 V (Standard)

·          Weight:44 LBS (20 Kg) – Can be varied depend on options

·         Accessories (Sold separately)

o         Transducer: TRN 600 Series are the specially designed transducers which light weight and easy installation used to inject acoustic noise into walls, finished ceilings, windows, plumbing, and air ducts.

§          TRN 600S (Speaker + Vibration): 60g, W 60 mm x H 24 mm, RJ11 Jack

§          TRN 600U (Speaker + Vibration): 60g, W 60 mm x H 24 mm, Wire connection

o         Omni-Speaker (OMS2000) -  3Way, 2.0 lbs (900g), 5 x 5-3/5 in (12.6 x 14.4 cm), 24 ohm.

SB-2400 후면

The Stealth Druid 6인용 휴대용 장비

Druid D-06

The Stealth Druid는 사람들 간의 중요 대화, 회의, 상담 시 도청으로부터 보호 하기 위한 세계 최초의 휴대용 도청 방지기 입니다.  장비와 도청 기술의 발전에 따라 일반적인 방법으로는 완전한 도청 장비의 탐색과 제거가 어렵고, 특히 지정된 보안 구역 외에서는 도청 위험에 노출 될 수 밖에 없습니다. 주위에 흔히 있는 휴대 전화, 전화, MP3 Player, PC도 도청에 이용 될 수 있습니다.

본 제품은 제품에 포함된 특수 헤드폰을 이용하는 대화자 간에는 아무런 영향을 주지 않지만, 어떤 방법으로도 대화 내용을 분석 할 수 없는 독특한 방해 음파를 발생시켜 제3자로부터 대화 내용의 비밀을 보장 합니다. Druid의 헤드폰에 내장된 탐지 장치는 혹시나 대화자의 귀에 설치된 초소형 무선 송신기에 의한 비밀 누설의 가능성도 방지 합니다.

-         최대 6인의 대화 내용 누설 방지

-         모든 종류의 도,감청 장비로부터 도청 방지

-         최고의 보안 보장: 일반 도청 방지 음향 발생기 보다 높은 수준의 보안 보장

-         높은 안정성과 안전성: 초음파, 초단파를 사용 하지 않아 인체에 무해 함

-         높은 이동성: 어느 장소에서도 사용 가능(휴대용 케이스)

-         준비 및 사용 방법이 간단

-         전원: 110~220V AC, 내장 충전기로 4시간 사용 가능

-        도청 방지 방식: 무작위 왜곡 및 반향 방식 (Distortion+Reverberation in a random sequence)



The stealth SM2020 실내음성 교란장비


The Stealth SM2020 은 대화 음성 및 전화 통화에 대한 누군가로부터의 도청, 녹음 등을 방해하기 위한 잡음 발생장비 입니다.

일반적인 White Noise 가 아닌 대화 음성을 왜곡 시켜 증폭한 특수 잡음으로 주변에 잡음을 방사합니다.

특히, 2개 채널의 외부 진동자를 사용하는 경우 옆 사무실, 옆방 칸막이 등을 통한 엿듣기 시도에 대하여 잡음과 함께 진동을 가하는 방식으로 도청 방지에 최적입니다.


-출력 : 본체 기본 1개 채널 및 외부 2개 채널

-운용 : 전자 볼륨을 이용한 각 채널 별 출력 제어.

-사용전원 : DC 9V-28V