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Lightspeed Zulu PFX

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Other Details

Headphone Impedance:
OFF—Mono: 200 ohms, ON—Mono: 280 ohms OFF—Stereo: 400 ohms, ON—Stereo: 560 ohms All @ 1kHz
Speaker Frequency Response (Active):
20Hz to 20kHz (volume sliders max)
Microphone Electret:
Bias: 8-16V (Not polarity sensitive) Bias Resistance: 220Ω-2200Ω Dual Aperture Disc
Sensitivity Electret:
16mV-132mV across 8-16V Bias Re: 94dB SPL input at 6mm
Frequency Response:
Maximum SPL for Microphone:
Power Source:
Battery: 3V, 4 AA batteries
14 oz. / 397 grams (including ear seals and mic boom)
Bluetooth Enabled Phone:
Bluetooth Streaming Music:
Flightlink Connection:
Bluetooth or wired
Firmware upgradeability:
iOS and PC platforms

Product Description

The world's quietest aviation headset is also the most intelligent. The only headset with an IQ.

Streaming Quiet™ ANR continuously adapts to your environment, extending the amount, consistency, and frequency range of noise cancellation.

Firmware enhancements are just a download away, giving Zulu PFX unlimited potential to evolve with new innovations.     

A headset finely tuned to you.

Acoustic response mapping measures your unique auditory landscape, personalizing the audio response for maximum noise attenuation, voice clarity, and music fidelity.

Enhanced capabilities in our FlightLink app allow you to configure and save key audio and operational settings to a personal profile.     

Engineered for comfort.

At 14 ounces, Zulu PFX is the lightest over-the-ear headset we have ever made and features plush ear seals that provide 20% more surface area and 30% more space for your ear inside the ear cup than its closest competitor, creating a better seal and more comfortable distribution of side pressure.

And that's just the start. Zulu PFX is packed with many other advanced features that provide an exceptional flying experience and are rapidly making it the choice of pilots around the world.

"'s clear to me that the PFX is not only the best headset in the Lightspeed's lineup by a long shot, it's also arguably the best headset available, period."
— Robert Goyer,
Flying Magazine


  • Ultimate quiet and clarity — The proprietary innovations and advanced features in Zulu PFX work in concert to deliver astounding clarity and the world's quietest headset.

  • Comfort — Based on the LightComfort™ design made famous by Zulu.2, Zulu PFX features a head-friendly 14 ounces, exceptional fit, and plush ear seals that provide 20% more surface area and 30% more space for your ear inside the ear cup than its closest competitor for a better seal and more comfortable distribution of side pressure.

  • Durability — Rugged cables, constructed of silver-coated copper alloy wrapped around a Kevlar core, deliver extraordinary flexibility, strength, and audio quality.

  • Full Bluetooth® Integration — Enjoy excellent call clarity, music fidelity, and wireless access to critical audio alerts from aviation apps on mobile devices.

  • Enhanced FlightLink capabilities — With Zulu PFX, FlightLink not only seamlessly captures cockpit communications for instant playback or later retrieval, it also allows users to set a variety of personal audio and operational preferences.

  • Music fidelity — The Front Row Center™ feature is enhanced by advanced digital processing, creating remarkable, concert-class fidelity and a simulated 360-degree music experience.

  • Auto Shutoff™ — In Zulu PFX, Lightspeed's proprietary Auto Shutoff feature is enhanced with increased sensitivity and user selected shut-off delay, saving even more battery life by automatically shutting down the headset power when not in use.

  • Cell phone / music connection — The integrated control box auxiliary input for connecting a cell phone, music player or other audio device now has controls for bass, treble, and intercom priority, thanks to the enhanced capabilities in FlightLink.

  • Stereo or mono — Match audio panel inputs with a quick switch to stereo or mono using the new, easy-to-access external switch.

  • Firmware upgradability — Firmware updates are just a download away, giving Zulu PFX unlimited potential to evolve with new software innovations.

  • Included — Custom molded carrying case, cellphone/music patch cord, USB cord, cord clip, steel CPU mounting clip, four AA batteries, foam windscreen.

  • 30-day money back guarantee — Lightspeed Aviation headsets are designed to be the best available anywhere, for any price. But we know that every cockpit and pilot is different. That's why we offer a 30-day money back guarantee. If you are not completely satisfied with your purchase for any reason, return the product for a full and prompt refund.

  •  5-year warranty


Click here to view the user guide.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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