Model H3430Over-the-Head Style (OTH)Noise-Cancelling M-7A amplified electret microphoneBTH style for applications requiring hard hats or protective headgearFlex-wire boom for easy, 'one touch' microphone placementBoom rotates 200 for left or right placementContoured, undercut 'Comfort-Gel' ear seals for maximum comfortRugged construction36" straight cordNoise Reduction Rating (NRR): 23 dB
