AUDIO monitoring

Radio bedbug, common parameters in the 94MHz frequency band ---- 98MHz, Range approx. 50m.

Description: Working voltage: 1.2V----- 9V 

Working current: 

3mA@1.2V, 

25mA @ 9V 

Special Multi-Channel Receivers

A special multi-channel receiver is designed for radio reception.

It is possible to choose to receive an open radio channel + Spectrum Inversion Decoder; or open radio channel + Delta modulation decoder.

The universal receiver is designed to receive audio data from analog and digital transmitters operating in the range of 416 to 421 MHz frequency.

METRO-ZS

Audio Control Set includes digital and analog audio transmitters, receiver and recorder

The kit is designed for audio surveillance over digitally encrypted RF connections. It has the possibility to implement the remote control.

The set includes analog and digital audio transmitters and an audio receiver with recorders

Voice recorder capable of recording a conversation from telephone line 650-D956A

To which you can record 72 - 1120 hours of recording directly to MP3 format using a built-in or external microphone, as well as directly record the phone's calls from a landline !

You just plug it into a landline and the answering machine takes care of everything. Record all conversations from your landline.

Audio-Video End Stage Transmitter Receiver 640-FOX850

850mW end stage for transmission of audio and video signals in the 1.2GHz band. This is a professional product. The possible range of audio, video signals is up to 1-2km even on the antennas that are included. There is no problem of using directional antennas, this step will increase the range.

The device uses 8 channels for possible video – audio transmission. This is that you can independently use eight devices at the same time.

A miniature digital voice recorder (audio voice recorder) camouflaged into a colored metal roller for professional audio recording to your internal memory. The device is characterized by extremely small dimensions and weight, long enduminate, very low power consumption, wide frequency range, large dynamic range, highly sensitive built-in microphone and voice recording activation (VAS) function. ( voice activation – recording is only performed if you hear sound in the room)

A miniature digital voice recorder (dictaphone) camouflaged into a wooden jewelry box for professional sound recording to your inner memory. The device is characterized by extremely small dimensions and weight, long enduminate, very low power consumption, wide frequency range, large dynamic range, highly sensitive built-in microphone and voice recording activation (VAS) function. ( voice activation – recording is only performed if you hear sound in the room)

A miniature digital voice recorder (voice recorder) for professional audio recording to your internal memory with higher recording quality. The device is characterized by extremely small dimensions and weight, durable metal packaging, long enduminate, very low power consumption, wide frequency range, large dynamic range, highly sensitive built-in microphone and voice recording activation (VAS) function. ( voice activation – recording is only performed if you hear sound in the room)

A miniature digital voice recorder (audio voice recorder) for professional audio recording to your internal memory. The device is characterized by extremely small dimensions and weight, charging from an integrated solar panel to its own Li-Pol battery, long enduasity, very low power consumption, a wide frequency range, a large dynamic range, a highly sensitive built-in microphone and voice recording activation (VAS) function.

A miniature digital voice recorder (micro audio dictaphone) camouflaged into a leather pendant (embossed leather) on keys for professional audio recording to your internal memory. The device goes on sale in a beautiful wooden case. 

The device is characterized by extremely small dimensions and weight, long enduminate, very low power consumption, wide frequency range, large dynamic range, highly sensitive built-in microphone and voice recording activation (VAS) function. It records a routine conversation up to 12 metres away with the high quality of interview registration.

Miniature dictaphone capable of recording continuously for up to 15 days. And that's on one charge. A miniature digital voice recorder (audio voice recorder) camouflaged into a black metal keychain for professional audio recording to your internal memory with higher recording quality. The device is characterized by extremely small dimensions and weight, long enduminate, very low power consumption, wide frequency range, large dynamic range, highly sensitive built-in microphone and voice recording activation (VAS) function. ( voice activation – recording is only performed if you hear sound in the room)

A miniature digital voice recorder (audio dictaphone) camouflaged into a small box the size of 3x AAA flashlights for professional sound recording to your internal memory. 300 hours of audio recording, battery capacity up to 110 hours per charge, or replacing them. The sensitivity of the microphone is for that model up to 15m !

Thanks to the 5 x-split microphone, the voice recorder can record sound from a certain direction over a distance of up to 15 meters and significantly reduces the background noise of the microphone. Why is that possible? If the recorded object is located sideways from the direction of the microphones signal "cancel - cancel" due to the phase difference of downloading the sound of each microphone.

With a newly redesigned user interface, Sound Cleaner II provides high-performance intuitive tools for best results. Powerful noise filters and other special features help you get results faster than ever.

This camera is mounted on a malfunctioning GSM phone. Put it simply on the table and no one sees that you are monitoring it, it has the ability to make both audio and video transmission. The camera is positioned to directly track the person in front of the phone. ( That's when you're antennae. Classic GSM phones have a camera in a flat place of cover, so its location prevents people from tracking.) This technology was developed only for hidden surveillance of persons.

The built-in high-quality electric microphone with compression amplifier with an extremely wide range of sensitivity control and noise filter (ACOUSTIC ZOOM) allows you to capture the sound of the compressor and the ticking of the wall clock. By pinching the short-circuit clutch in front of the module, it is possible to optimize the noise properties for voice operated recording (VOR) recording systems.