Lightspeed Zulu 4Lightspeeds Zulu series headsets have earned a reputation as top choices in premium ANR headsets, thanks to remarkable comfort and award winning active noise cancellation (ANR) that delivers consistent performance over a deep, broad range of low frequency noise. Zulu 4 builds on that success by offering more comfort, more clarity, and more flexibility. More Comfort All new FrameFit ear seals are a game changer for pilots who wear glasses, hats, or