Many military applications require headsets without Bluetooth capability so this headset has Bluetooth removed and can be configured as either low or high impedance and a variety of plug types (dual plugs, U174, or 6-pin LEMO panel power).  Most military applications need the U174 plug with low impedance.

For civilian flight decks where Bluetooth is prohibited, you should get the HIGH impedance version of the headset in the correct plug configuration (usually the dual plugs).

Lightspeed engineers researched how pilots perceive noise at various frequencies in the cockpit, then developed technology providing focused noise attenuation over the most critical ranges. The result is the Lightspeed Zulu 3, a headset with the ultimate performance profile and industry-leading total noise cancellation attributes.

Quietbr> With patent-pending Microport Vent technology and new electronic cancellation components, the Zulu 3 offers improved active noise reduction (ANR) consistency and performance over a deep, broad range of low frequency noise. The magnesium ear cup is superior at blocking out high frequency noise.

Comfort

• Weighing in at about 13 ounces, the Lightcomfort design includes plush ear seals, exceptional fit and 15% less side pressure.
• Performance ear seals are tapered to provide a more natural fit, for greater comfort and stability.
• Plush ear seals provide 20% more surface area than competitors, for a better seal around glasses frames and a more comfortable distribution of side pressure.
• Larger cup cavity provides 50% more space for your ears, allowing the entire ear to fit comfortably inside, while preventing the pain caused by seals pressing against the edge of the ear
• Low-pro file stainless steel headband follows the curve of the head for more comfortable distribution of weight and side pressure

Durability

• New rugged cables built around a Kevlar core deliver more strength and flexibility with less weight than standard cables
• Nearly 100% of the headset is made from stainless steel and magnesium
• Magnesium ear cups are both strong and light, while delivering superior high-frequency noise attenuation
• A low-profile, stainless steel headband provides lightweight durability and excellent cabin clearance.

Clarity

• The Dual Aperture Disc™ microphone provides greater noise cancellation for unparalleled voice clarity, more intelligible communications with crisp, rich audio
• Exclusive, user-adjustable mic gain helps balance loud and soft voices in a multi-headset environment
• Front Row Center™ (FRC), stereo cross-feed technology, and redesigned speakers deliver crisp, rich audio and unparalleled music fidelity

FlightLink for iPad / iPhone
The first in-flight cockpit recording application for the Apple iPad and iPhone. The free FlightLink app works seamlessly with the Lightspeed Zulu 3 headsets to capture and retrieve incoming and outgoing communications. Store multiple flight recordings on your device or computer, and enjoy instant playback of Air Traffic Control transmissions. On the iPad, draw notes on the large scratchpad. Easily toggle from other apps to access recordings and notes.

Stereo or Mono
Match audio panel inputs with a quick switch to stereo or mono.

ComPriority
Never miss important radio communications with patented ComPriority which lowers the volume of any auxiliary device automatically during radio or intercom transmissions.

Auto Shutoff
Lightspeed's proprietary Auto Shutoff feature saves battery life by automatically shutting down the headset power when not in use.

Industry Leading Warranty
Zulu 3 is backed by an industry best 7 year warranty.

Includes
Carrying case, cell phone/music patch cords, cord clip, 2 AA batteries, foam windscreen

• Option 1: U174 Plug with low impedance.  This is the variant most often needed for military applications.
• Option 2: U174 Plug with high impedance. 
• Option 3/4: Fixed Wing Dual Plugs model that uses the two standard plugs (PJ-055 and PJ-068) and a battery box  Either high or low impedance.
• Option 5/6: Panel Powered /b>wwith a single LEMO (Redel) Connector (your panel must be wired to use this!).  Either high or low impedance.