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The Shure 514B is a low impedance, dynamic, handheld microphone designed for paging and public address systems It provides clear, natural voice response and high intelligibility.

Features:

• Smooth, extended frequency response from 100 to 6,000 Hz -- provides highly intelligible voice response
• "Million-Cycle" leaf-type switch -- provides outstanding reliability, even under extreme conditions
• Tough ARMO-DURcase
• Long-life, neoprene-jacketed, coiled cable
• Supplied mounting bracket fits hang-up button on back of microphone

Specifications:

• Type: Dynamic
• Frequency Response: 100 to 6,000 Hz
• Impedance: Microphone rating impedance is 150 ohms (200 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms.
• Output Level: Open Circuit Voltage: ­36.5 dB (15 mV), ­56.5 dBV/Pa (1.5 mV)(*0 dB = 1 volt per 100 microbars, 1Pascal = 94 dB SPL)
• Switch: Push-to-talk, leaf-type switch to actuate microphone circuit and relay or switching circuit, Microphone circuit normally open
• Cable: 1.5 m (5 ft) extended, four-conductor, two-conductors shielded, neoprene-jacketed, coiled cable
• Case: Matte black ARMO-DURŪ
• Net Weight: 200 grams (7 oz)
• Packaged Weight: 372 grams (13 oz)