The purpose of this page is to demonstrate the impact on the audio out of the Bluetooth with the vocal isolation function with the Lightspeed Zulu 4 ANR headset and compare it against competitive aviation ANR headsets. These recordings were created in a lab environment with the aircraft recording samples played at 95 db. The same voice actor was used to record the fictional tower communications, and a script was used for consistency.
Please listen to the various recordings from a Piper PS-30 Twin Comanche, a Cirrus SR20 and a Cessna 172, using the David Clark One-X, the Bose A30 and the Lightspeed Zulu 4 with the vocal isolation function enabled to hear the distinct clarity of each.
Lightspeed Zulu 4 ANR Headset
Introducing Zulu 4 — the latest in Lightspeed’s best-selling lineup of ANR headsets. With Dual Bluetooth, vocal isolated outgoing audio via Bluetooth, and our innovative FrameFit™ ear seals designed for unrivaled comfort with glasses and hats, you get more comfort, clarity, and flexibility with Zulu 4.
