The Astatic noise-canceling microphone is designed for close talking, handheld applications in quality sound installations where background noise is a problem. The omnidirectional dynamic microphone's frequency response, especially tailored for voice communications, provides a crisp, clear, highly intelligible sound with 360° minimization of background noise. A soft lip-guard is positioned to assure proper close-talk voice spacing by the microphone's operator. The dynamic cartridge has a rugged polyester diaphragm that resists moisture, temperature extremes, most acids, alkalines, and solvents. Molded in high-impact Cycolac, the 631L microphone comes with a permanently attached, heavy-duty, four-conductor, two-shielded coil cord. The low impedance Astatic Noise-Canceling Microphone is simple to operate. A trouble-free DPDT long-life switch is factory-wired normally open.

Astatic by CAD Noise-Canceling Omnidirectional Dynamic Handheld Microphone with Switch Specifications:

• Operating Principle: Moving Coil Dynamic
• Polar Pattern: Noise Canceling
• Frequency Response: 100 to 5000 Hz
• Sensitivity: -62 dBV (.8 mV) @ 1 Pa
• Impedance: 180 ohms
• Output Level: -58 dB (0 dB = 1mw / 10 microbars), -80 dB (0 dB = 1 volt / microbar), 1.0 mV/PA
• Cable: Four-conductor, two-shielded, permanently attached, heavy duty, coil cord that extends to 6'
• Switch: Operated by press-to-talk lever, DPDT long life, trouble free switch with spring return, has smooth feel. Wired normally open
• Housing: Durable molded black Cycolac
• Dimensions: 3-15/16" high x 2-3/32 wide x 2-5/8" deep
• Weight: 10 oz.

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