Description Model H3432 Over-the-Head Style (OTH) Noise-Cancelling M-7A amplified electret microphone Microphone on/off button Flex-wire boom for easy, 'one touch' microphone placement Boom rotates 200° for left or right placement Contoured, undercut 'Comfort-Gel' ear seals for maximum comfort Rugged construction 6 ft. coil cord Noise Reduction Rating (NRR): 23 dB Part Number: 40524G-02
