Over the Head Style (OTH)Certified Noise-Reduction Rating of 23dBOur Most Popular Model with a Noise Reduction Rating of 23 dB Parts List Model 10A Hearing Pr..
Over the Head Style (OTH)Over-The-Head styleBased on Model 19A with certified NRR of 27dBAn extra 17-22db at lower frequencies with ENC turned onENC function controlled by rotary on-off switch on domePatented Undercut Comfort-Gel ear seals22.5 oz with batteriesComfortable, ..