PH-400AHC-BT Bluetooth Aviation Headset, an unmatched combination of active noise cancellation, comfort and clear communication, is designed to let you focus on what matters—flying. Carbon Fiber shell weighing just 260g, it’s one of the lightest and most comfortable aviation headsets you’ll find. High quality ear pad and head pad, super soft, comfortable fit. Ear pad not only shields the noise, but also protects the head from being squeezed. The headset headband can be freely adjust, suit for any head size, provide you with allday comfort.