David Clark MODEL H6045 Behind the Head Style (BTH) | Throat Microphone
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30 in. straight cord
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BTH style for applications requiring hard hats or protective headgear
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Flex boom for easy, precise microphone placement
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Foam-filled ear seals for maximum comfort
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Hard hat not included
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Noise Reduction Rating (NRR): 23 dB
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Rugged construction
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Throat microphone ideal for use with Hazmat suits and breathing apparatus
Noise Attenuation Data
NRR
23 dB Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000
Attenuation (dB) 14.1 21.9 29.4 32 29.7 35.2 36.2 38.1 37.4
Standard Deviation 2.5 2.5 3 2.7 2.2 1.7 2.5 2.9 2.8