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  • Manufacturer:
  • Newark Part No.: 17M8452
  • Manufacturer Part No 577B

Product Overview

The 577B is a noise-cancelling Handheld Dynamic Microphone designed for communications and paging applications that require highly intelligible, low noise output. It can be used in all types of mobile communications, from amateur radio to helicopter news and traffic reports. It represents a significant improvement over most microphones with anti-noise features. Shaped frequency response, directionality and distant sound discrimination contribute to total noise reduction. The microphone operates on the pressure-gradient principle and has two sound entry ports spaced a small distance apart. The modular design of the microphone greatly facilitates field servicing.
  • Frequency response tailored for close-talk operation
  • Dynamic microphone cartridge
  • Modular design
  • Million-cycle leaf-type press-to-talk switch
  • Rugged ARMO-DUR® case
  • Built-in hang-up button and supplied mounting bracket


Audio; Commercial; Industrial
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Product Specifications, Documents & More

  • Directivity: -
  • Frequency Response Max: 5000Hz
  • Frequency Response Min: 100Hz
  • Impedance: 175ohm
  • Lead Length: -
  • Output Impedance: -
  • RoHS Compliant: Yes
  • SVHC: To Be Advised
  • Sensitivity: -

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View this product in our online catalog

This product also features on the following pages and catalog editions:

  •  131/2412
  •  132/2087


Availability:  14

  • 14 in stock for same day shipping
Check stock and lead times
    More stock available week commencing 12/7/15

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $255.75 $255.75



Quantity List Price
1 - 4 $255.75
5+ $249.15

Legislation and Environmental

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