Model H3312 - Noise attenuating headset

H3312
H3312 Enlarge image

Noise attenuation data

Frequency (Hz)125250500100020003000400060008000
Attenuation (dB)22.425.530.333.334.139.339.938.738.3
Standard Deviation3.23.23.02.22.52.62.42.53.5

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(source: http://www.davidclark.com/)