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AUDIO EQUIPMENT

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Miniature Pre-Amplified Microphone

 

Miniature Pre-Amplified Microphone

Item: A-03   $ 75.00

This extremely sensitive, pre-amplified, high gain audio microphone system consists of a miniature microphone and amplifier in a single shrink-wrapped module measuring only 1.0" x 0.25" x 0.25".  Includes approximately 6 feet of cable, plug and play RCA type audio connector and a coaxial power connector.  Can be powered by any 6 - 15 volt DC source, and the current draw is a mere 20 mA maximum at 12 volts.  Specifications include 20 - 1600 Hz frequency response, and a signal to noise ratio of more than 58 dB.

Note:  1/8" phono type audio adapter available upon request.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Directional Shotgun Microphone

 

Directional 'Shotgun' Microphone

Item: A-05   $ 250.00

This highly sensitive directional electret condenser microphone is capable of picking up a specific sound from 50 yards or more, depending upon the target sound and ambient sound levels.  Complete system includes directional microphone, coiled audio cable with 3.5mm plug, removable wind screen, camcorder mount, custom carrying and storage case, and audio amplifier with built-in speaker.  The unit can also be hand-held.  Optional accessories include headphones and mini tripod.  Frequency range is 50 Hz - 10 KHz, sensitivity is -60dB, signal to noise ratio is 40dB or more, output impedance is 600 ohms, and the microphone measures approximately 12" long (16" long when using removable wind screen), 1 inch in diameter, and 7.5" tall when used with camcorder mount.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Super High Gain Parabolic Microphone System

 

Super High Gain Parabolic Microphone System

Item: A-06   $ 1100.00

Don’t confuse this unit with the 'toys' you've seen advertised elsewhere for as much as $1000 or more.   Known throughout the world as the finest parabolic sound system, this unit is able to pick up sounds from up to a mile or more (depending upon the target sound and ambient noise levels)!

Used by movie, television and sports broadcast crews, the 18.75" patented plastic parabolic reflector is specially designed to reflect low frequency sound waves towards the microphone and reject unwanted 'background' noise, providing the highest possible gain and signal to noise ratio.

Features include a 600 ohm dynamic, omni-directional microphone (150 - 20 KHz range) with extremely high gain (amplification of up to 75 times!) amplifier and reflector, a visual sight for pinpoint accuracy, a switch to set especially for 'voice' or 'other' sounds, tripod mount option, audio level control, protective carrying case and headphones.  Powered by two 9 volt batteries (not included) and weighs less than 3 pounds.

 

Specifications & Features:

  • Audio Gain:  Up To 75 Times
  • Microphone Type:  Dynamic (600 Ohms)
  • Audio Reflector:  18.75" Diameter (Plastic)
  • Microphone Cable:  0.13" (3.3 mm) Diameter, 6 Foot (1.83 meter) Long, 2 Conductor Shielded
  • Frequency Response:  150 Hz to 20 KHz +/- 5 db
  • Output Impedance:  150 to 600 Ohms, 150 Ohm Earphone
  • Output Level:  -42 dbm @ 1 KHz, Earphone 0 db (+ 5 / - 20 db)
  • Power Supply:  Bipolar, (2) 9 Volt Alkaline Batteries (not included), Normal Voltage +/- 8.4 Volts DC, Range +/- 5 to +/- 10 Volts DC, Current 5 mA @ 10 Volts, 2 mA @ 5 Volts
  • Typical Battery Life:  Approximately 60 Hours
  • Audio Channels:  Single (mono)
  • Audio Control:  On/Off/Range
  • Weight:  Approximately 2 Pounds, 10 Ounces
  • Operating Temperature:  -15° to +122° Degrees Fahrenheit (-28° to +50° Celsius)
  • Padded Headphones & Molded Carrying Case Included


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Economy Parabolic Microphone System

 

Economy Parabolic Microphone System

Item: A-07   $ 225.00

An economically priced parabolic sound system that increases audio level by up to 30 decibels.  The 12" plastic parabolic reflector is specially designed to reflect low frequency sound waves towards the microphone and reject unwanted 'background' noise, providing the highest possible gain and signal to noise ratio.  The omni-directional microphone and amplifier may be used without the reflector, or add the included reflector for higher audio gain and directivity. 

Features include automatic audio level control with muting of loud sounds over 95 decibels (hearing protection feature), high quality headphones, and a 3.5mm miniature phono type audio output connection.  The system is powered by a single 9 volt battery (not included), with an average battery life of 40 hours.

Specifications & Features:

  • Audio Gain:  30 dB
  • Microphone Type:  Omni-Directional
  • Gain Compression:  Normal = 10 mA, Full = 33 mA
  • Maximum Input Voltage:  10 VDC (DC + Peak AC)
  • Input Impedance:  290.3 Ohms
  • Power Source:  Single 9 Volt Alkaline Battery (not included)
  • Automatic Audio Cutoff:  95 dB
  • Audio Output:  Earphone Jack & Tape Recorder Jack
  • Audio Channels:  Single (mono)
  • Audio Control:  On/Off/Volume
  • Audio Reflector:  12" Diameter (Plastic)
  • Weight:  Approximately 28 Ounces
  • Padded Headphones Included


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Contact Microphone System

 

Contact Microphone System

Item: A-08   $ 225.00

This microphone systems permits the user to listen 'inside' and 'through' solid surfaces such as walls, floors, ceilings, windows, doors and most other solid surfaces.  Extremely useful for many applications, including automotive diagnostics, locating leaking pipes, inspecting packages and many other possible uses.  Includes a volume control, high quality earphones and an additional audio output jack to connect a recorder, amplified speaker, transmitter, etc.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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High Gain Pen Microphone

 

High Gain Pen Microphone

Item: A-09   $ 150.00

This microphone looks like an ordinary pen, and is actually contained within a real (non-working) pen, but it’s actually an extremely high gain, two-stage, pre-amplified microphone which significantly increases audio levels over those achieved with non-amplified microphones.  Place it in your pocket and record everything that you can hear.   (Carry a REAL pen in your pocket just in case someone asks to "borrow your pen"!!!)

Miniature phono type plug attaches to external microphone jack of any standard or miniature tape recorder (not included).  Sensitivity is -62dB nominal and frequency response is 350 Hz - 3.5 KHz nominal.  3 volt lithium battery (included) lasts up to 500 hours.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Professional, Heavy-Duty, Long Play Logging Recorders

 

Professional, Heavy-Duty, Long Play Logging Recorders
Unlike most other 'long play' recorders offered for sale elsewhere, these recorders are NOT modified "standard" tape recorders.  These units are built specifically for professional telephone, two-way radio and scanner logging, and are used by local, state and federal law enforcement, as well as many other public and private agencies.  Each recorder is available with or without 'VOX' (voice controlled recording) function.

Specifications & Features:

  • Up to 16 hours of total recording time (half on each side of tape)
  • Built-in microphone and 4 inch speaker
  • Dual power (115 volts AC or 6 “C” batteries)
  • Digital tape counter
  • Separate volume and tone controls
  • Aux. audio input, remote and headphone jacks
  • Automatic and manual recording level control
  • Auto AC-to-battery switch in case of power failure
  • Automatic shut-off at end of tape
  • Dimensions: 11.5" x 7.0" x 2.75"
  • Weight: 4 lb. (without batteries)

Available Models:


Prices:


A-10     10 Hour Recorder


$ 325.00

A-11     10 Hour Recorder with VOX Function

$ 350.00

A-12     12 Hour Recorder

$ 375.00

A-13     12 Hour Recorder with VOX Function

$ 400.00

A-14     14 Hour Recorder

$ 425.00

A-15     14 Hour Recorder with VOX Function

$ 450.00

A-16     16 Hour Recorder

$ 475.00

A-17     16 Hour Recorder with VOX Function

$ 500.00


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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World's Smallest Audio Recorder
Shown Approximately Actual Size (800 x 600 Resolution Monitor)

 

World's Smallest Tape Recorder

Item: A-18   $ 390.00

This microcassette recorder is perfect for recording conversations, notes, meetings, and for many other investigative uses.   Measuring only  2.9" (h) x 2.1" (w) x 0.8" (d), this miniature recorder is approximately one half the size of a standard size cassette tape.  Small enough to carry in your pocket, this unit is an indispensable investigative tool.  Includes a high quality built-in microphone and speaker, and features auto reverse for continuous recording on both sides of the tape.

Specifications & Features:

  • Dimensions: 2.9" (h) x 2.1" (w) x 0.8" (d)
  • Weight: 3.2 oz. (without battery)
  • Auto reverse and auto shut-off
  • Easy to read LCD display
  • Controls: record, play, direction, speed, fast forward, rewind, stop, auto reverse on/off, VCVA on/off, tape speed
  • Jacks: external microphone, remote control, earphone
  • Tracks: 2 tracks, 1 channel monophonic
  • Drive system: capstan drive
  • Tape: microcassette
  • Tape speed: 2.4 mm/sec. and 1.2 mm/sec.
  • Recording system: auto recording level adjustment
  • Continuous adjustment of voice actuation level
  • Speaker: 2.3 cm round dynamic
  • Frequency range: 400 - 4000 Hz
  • Maximum audio output: 100 mW
  • Battery: single 1.5 volt AAA (not included)


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Tie Clasp Microphone

 

Tie Clasp Microphone

Item: A-19   $ 75.00

CLOSEOUT PRICE   $ 25.00

This microphone looks like an ordinary silver colored tie clasp, but it is actually a sensitive, electret condenser microphone, providing an extremely discreet method of recording 'face-to-face' conversations.

Miniature 1/8" phono type plug at the end of a 4 foot cable attaches to the external microphone jack of any standard or miniature tape recorder (not included).  Powered by a single CR2025 battery, one battery will typically last for more than 100 hours of continuous operation.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Super Sensitive Audio Diagnostic Microphone System

 

Super Sensitive Audio Diagnostic Microphone System

Item: A-20   $ 325.00

Amplifies sound while shutting out surrounding noise, permitting the user to listen 'inside' and 'through' solid surfaces such as walls, floors, ceilings, windows, doors and most other solid surfaces.  Extremely useful for many applications, including automotive diagnostics, locating leaking pipes, inspecting packages and many other possible uses.

Far more sensitive than our Item # A-08 (Contact Microphone System), this unit features a super sensitive microphone (40 Hz - 20 KHz range) in the tip of a 9" flexible (non-conductive) coated probe which can be utilized in 'contact' or 'free air' modes, and a removable metal probe for use on hot surfaces or recessed areas.

Includes 1/8" phono style audio output, detachable padded earphones,  volume control, an LED power indicator, padded hard carrying case, and a 9 volt battery.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Super Sensitive Adjustable Gain Audio Diagnostic Microphone System With Audio Level Meter

 

Super Sensitive Adjustable Gain Audio Diagnostic Microphone System With Audio Level Meter

Item: A-21   $ 375.00

 

Similar in design and function to our Item # A-20 (above), this unit amplifies sound while shutting out surrounding noise, permitting the user to listen 'inside' and 'through' solid surfaces such as walls, floors, ceilings, windows, doors and most other solid surfaces.

However, in addition to being extremely useful for many applications, including automotive diagnostics, locating leaking pipes, inspecting packages and many other possible uses, this unit also adds 7 sound level settings (60 dB to 120 dB), a high/low tone sound selector switch, and a dB sound level meter.

Far more sensitive than our Item # A-08 (Contact Microphone System) and with additional features not found on our Item # A-20, this unit features a super sensitive microphone (40 Hz - 20 KHz range) in the tip of a 9" flexible (non-conductive) coated probe which can be utilized in 'contact' or 'free air' modes, and a removable metal probe for use on hot surfaces or recessed areas.

Includes 1/8" phono style audio output, detachable padded earphones,  volume control, an LED power indicator, padded hard carrying case, and a 9 volt battery.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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Digital 8 Hour Audio Recorder

Item: A-22   $ 400.00

This 'stand alone' fully digital (no tape!) audio recorder measures only 4" (h) x 1.5" (w) x 0.75" (d), weighs only 2.2 ounces (including batteries), and can record more than 8 hours of audio.  Also included is a modular telephone adapter which can be used to automatically begin recording both sides of a telephone conversation as soon as any telephone on the line is used.

This recorder also includes is a voice-activated mode, and a 'Voice Manager' software compact disc, allowing you to transfer recordings to your computer, as well as classify, edit, e-mail and play them back on your computer.  Powered by two 'AAA' alkaline batteries (not included).

Also includes an adapter to connect the recorder to any modular telephone wall jack on a single-line standard telephone system, making this recorder an effective telephone recorder capable of recording up to 8 hours of audio, starting when any telephone receiver on that line is lifted, and stopping when the telephone is hung up.


NOT INTENDED FOR UNAUTHORIZED EAVESDROPPING.


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