Model H10-13XL Passive NR Aviation Headset | Panel Power ModuleThe Model H10 13XL aviation headset features electronic noice cancellation (ENC) and a M 7A amplified electret microphone for offering pilots with crisp & clear communication. Crisp & clear communications aided with 23 dB of passive noise reduction and an addition 17 dB 22 dB of low frequency reduction when ENC is activated. Large, super soft gel ear seal combined with a double foam head pad offer comfort on long flights, while a flex wire boom