The David Clark H7040 Behind the Head Headset is a dual muff style, and perfectly designed to comfortably fit under hard hats and other protective headgear. The microphone is mounted on a wire boom for easy and precise placement. Foam-filled ear seals make the H7040 comfortable to wear, and rugged construction makes it built to last.
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Noise Attenuation Data - Frequency (Hz)
125
250
500
1000...
[Show More]
2000
3150
4000
6300
8000
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David Clark H7040 Headset Parts List
The David Clark H7040 Behind the Head Headset requires a radio adapter that's specific to your radio. This headset features a Noise Reduction Rating (NRR) of 24 dB and includes a 36" straight cord with a U-174/U plug connect.
Noise Attenuation Data - Attenuation (dB)
18.3
23.3
30.9
35.3
36.3
42.9
43.2
42.3
41.4
Noise Attenuation Data - Standard Deviation
3.7
3.7
3.9
4.4
2.8
3.1
3.1
2.7
3.9
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