Lightspeed Aviation unveiled its top-of-the-line headset, the Zulu PFX, yesterday at EAA AirVenture. The headset retails for $1,100 and offers enhanced dynamic active noise reduction technology over the company’s Zulu.2, in a slimmer and lighter package. It also features an enhanced version of the company’s FlightLink software, which allows streaming audio through a free iOS app. The company expects to begin Zulu PFX deliveries in September.