David Clark H10-66XL Noise Cancelling Military Headset (40614G-05) Default Noise Reduction Rating (NRR): ~22

Noise Reduction Rating (NRR): ~22 dB

Certified Noise Reduction Rating (NRR) of 22 dB for effective passive attenuation

built for helicopter pilots who need dependable noise reduction

Stereo/Mono switch with dual volume controls for audio balance

David Clark H10-66XL Noise Cancelling Military Headset (40614G-05) Default Noise Reduction Rating (NRR): ~22David Clark H10 66XL Noise Cancelling Military Headset (40614G 05) The David Clark H10 66XL (40614G 05) is a rugged military aviation headset featuring Electronic Noise Cancelling (ENC) performance and a dual impedance selector for maximum compatibility. Built for demanding cockpit environments, it delivers clear communications with dependable comfort for long duty operations. Electronic Noise Cancelling (ENC) technology helps reduce cockpit and rotor