High Quality PNR Headsets For Affordable Aviation! PNR Aviation Headset with GA Nickel plated dual plugs for noise reduction. Molded cord for exceptional pull and flexibility standard. Noise canceling electret microphone with amplifier. Noise Reduction Rating (NRR): 24Db. Articulating flex boom for perfect microphone placement. Articulating Fulcrum on Ear pads for maximum comfort. Ribbed extra soft foam head pad & high density foam windsock for mic included for wind noise prevention. Manufacturer Model: AVHM10