David Clark Aviation Headset | Coil Cord, Dual Plug, Flex Boom, M-7/APassive noise attenuating headsets designed for fixed wing aircraft provide extremely reliable performance and communication clarity. The H10 20 is an excellent value for both seasoned aviators and pilots who are just earning their wings. Engineered and designed with comfort features that pilots have asked for, including a super soft foam head pad, adjustable headband and Comfort Gel ear seals.