The Air 3500 Headset is a passive noise attenuating headset that demonstrates Telex’s commitment to provide the maximum possible hearing protection in noisy aircraft cockpits. The engineering staff at Telex has been able to maximize the amount of hearing protection provided by the Air 3500, while at the same time minimizing weight. The headband has also been carefully designed to assure wearer comfort on long flights. The Air 3500 is available in versions for fixed-wing and helicopter use.