Delta Zulu ANR Headset

Lightspeed Aviation Delta Zulu Headset

Congratulations on purchasing the Lightspeed Aviation Delta Zulu
headset! This premium product is engineered to provide superior
performance, comfort, and durability. It is also backed by the
longest warranty in the industry.

Product Features

• Built-in hearing aid technology

• Carbon monoxide (CO) detection

• Ultimate noise cancelling technology for precise
  communications

• Bluetooth wireless technology for streaming music and phone
  calls

• Stainless steel headband and magnesium ear cups for
  durability

• Kevlar-core cables for added strength

Getting Started

To gain peak performance from the ANR feature, it is necessary
to have a solid seal around your entire ear and a symmetrical fit
on your head. Follow these steps to fit your headset properly:

1. Adjust the headband for a comfortable fit.

2. Position the ear cups over your ears.

3. Tighten or loosen the ear cup pivot points as needed to achieve
   a secure seal around your ears.

4. Adjust the mic boom so that the mic is close to your
   mouth.

Usage Instructions

Mic Gain Adjustment

The mic gain can be adjusted using the DIP switch settings. See
instructions below.

DIP Switch Settings

The Delta Zulu headset has DIP switches that can be used to
customize certain settings. To change a DIP switch setting:

1. Open the battery compartment to access the DIP switches.
2. Flip the switch up or down to turn the setting on or off.
3. Replace the battery compartment cover.

Personalizing Your Headset

You can personalize your headset by using UAC cables and plugs
for charging, audio, and data. There are four types of UAC plugs
available. You can also connect auxiliary devices like an iPhone or
iPad.

Carbon Monoxide Detection

The Delta Zulu headset has built-in carbon monoxide detection
technology. If the CO sensor detects elevated levels of CO, an
alarm will sound and the headset will vibrate to alert the
pilot.

Peak Performance Tips

For optimal performance, it is recommended that you replace the
ear seals and mic muff every 18-24 months, or sooner if they become
damaged or worn.

FAQs

Refer to the FAQ section for answers to common questions about
the Delta Zulu headset.

Specifications

Refer to the specifications section for detailed information
about the Delta Zulu headset.

Warranty Information

The Delta Zulu headset is backed by the longest warranty in the
industry. Refer to the warranty information section for
details.

Lightspeed App

The Lightspeed App can be used to activate your headset and
access additional features like the cockpit voice recorder.

Product Registration

Remember to register your Delta Zulu headset with Lightspeed
Aviation to receive important updates and support.

Delta Zulu User Guide

Welcome
Congratulations on purchasing a Lightspeed Aviation Delta Zulu headset. Your headset is a premium product engineered to provide the highest levels of performance, comfort, and durability and is backed by the longest warranty in the industry.
If this is your first Lightspeed Aviation headset, welcome to the Lightspeed family. Together with our customers, we are building a lasting community founded on products and service that we hope you find exceptional.
For more information about our company and products, visit LightspeedAviation.com.
Thank you for choosing a Lightspeed Aviation headset.

Contents

Introduction …………………………………………………………………………5
Getting Started Fitting Your Headset ……………………………………………………….6 Head Pad and Ear Seals………………………………………………….7 Battery Installation…………………………………………………………..8 Battery Types……………………………………………………………………..8 Battery Life………………………………………………………………………….9 Controller………………………………………………………………………….10
Using Your Delta Zulu Headset Turning Delta Zulu ON and OFF ……………………………..12 Sensors­Location, Purpose, Audible Warnings….12 Matching Stereo/Mono Setting to an Audio Panel……………………………………………………………………..13 ComPriorityTM ……………………………………………………………………13

Mic Gain Adjustment…………………………………………………..14 DIP Switch Settings………………………………………………………14 To Change a DIP Switch Setting………………………………14 Personalizing Your Headsets……………………………………..16
UAC for Charging, Audio and Data UAC Plugs………………………………………………………………………………17 UAC Cables for Charging, Audio and Data……………..17 4 Types of UAC Plugs………………………………………………………..17 Auxiliary Devices (iPhone and iPad) ………………………….17
Bluetooth® Wireless Technology Bluetooth Features ……………………………………………………………18 Bluetooth Mode–ON and OFF………………………………….18 Pairing a Mobile Phone or Device………………………………19 Connecting Mobile Devices for the First Time……..19

Contents

Features of KanariTM Technology Carbon monoxide (CO) detection……………………………..20 CO Sensor ……………………………………………………………………………..20 Warnings & Errors ………………………………………………………………21

Peak Performance Tips…………………………………………………24 FAQs ………………………………………………………………………………………. 25 Specifications …………………………………………………………………… 32

HearingEQityTM …………………………………………………………………..22 Warranty Information…………………………………………………..34

Lightspeed App Lightspeed App Activation……………………………………………23 Cockpit Voice Recorder …………………………………………………..23

Product Registration …………………………………………………….35

Introduction ­ On a Mission to Save Lives

Delta Zulu is the first aviation headset with builtin hearing aid technology and life-saving features for any pilot who wants the best and safest gear to support their quest for the ultimate flying experience.
Delta Zulu headsets are a part of the next generation of “wearable safety” that revolutionizes pilot safety, personalization and cockpit data management. Built with KanariTM smart alert technology, the Delta Zulu sensors gather data, providing awareness and alerts to promote safety. Strategically placed sensors are built into the Delta Zulu to monitor CO levels in the environment. Our sensor seamlessly and automatically provides pilots with an improved and integrated experience. Audio warnings are delivered through Delta Zulu’s headset to allow you to quickly make necessary adjustments.

The Delta Zulu also comes with HearingEQityTM ­ a built-in audio equalization system designed to compensate for hearing loss. Initial set up is done in the Lightspeed App by taking a brief hearing test. Once complete, Delta Zulu delivers a customized listening experience based on the hearing profile of the wearer improving intelligibility, and providing a critical feature for your safety and the safety of your passengers.
As with all models in the Zulu family, the Delta Zulu has a stainless steel headband, magnesium ear cups, and durable cables built around a Kevlar core. Features include low profile comfort, high performance fitting, ultimate noise cancelling technology for precise communications, and Bluetooth wireless technology for streaming music and phone calls.

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Getting Started

Fitting Your Headset
Fitting your headset properly is the key to comfortable use and superior Active Noise Reduction (ANR) capabilities. To gain peak performance from our ANR feature, it is necessary to have a solid seal around your entire ear, together with a symmetrical fit on your head.

4. Position the microphone 1/8 inch from your mouth; face the side of the microphone with the four screws and Lightspeed logo away from you. (Remove the mic windscreen to see these features.)

The following tips will assist you in achieving the proper fit.
1. Extend the sliders fully.

This side of the microphone should face away from you. The small `cap’ (larger disk in the middle) on the back is to access a Microphone gain adjustment.

2. Place the headset on your head and compress If you need a tighter fit to ensure a good seal

the sliders slowly and evenly on each side until around your ears, please call Customer Service at

the head pad rests softly on the top of your head. 800-332-2421 or email support@lightspeedaviation.com

3. Adjust the ear cups to ensure the ears are fully inside the ear seal and there is uniform pressure on your head.
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to receive assistance. There are a number of possible solutions that will work and the team will guide you through the process to make sure you get the very best performance.

Getting Started

The Head pad and Ear seals
Our tapered ear seals are designed to hug the curve of your jaw for a natural fit, increasing comfort and clarity while also providing a better seal around glasses frames.
If you feel that your ears are not centered within the ear cups, even after collapsing the sliders completely, a taller head pad might be the solution. This will move the ear cups further up the side of your head to allow you to center your ears within the cups.

To order a complimentary tall head pad (part number A484), please call Customer Service at 800-332-2421 or email support@lightspeedaviation.com and mention promo code FTHP. You will be asked to provide your headset serial number. (See page 27 to locate your serial number.)

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Getting Started

Battery Installation The GA and Helicopter versions of Delta Zulu battery- powered headsets require either two AA batteries or the rechargeable lithium ion battery cartridge (both included) for best performance. A. Pinch the narrow buttons on each side of the
control box to release the battery cartridge. One of the battery cartridges that came with your headset holds two AA batteries. Slide open the small door to insert the batteries with the correct polarity positioning.
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B. The LED flashes GREEN when the batteries are charged and the power is ON.
C. When batteries begin to run low, the power LED flashes RED. If the LED flashes RED during flight, the headset will continue to operate for 4­5 more hours. Install new batteries as soon as you can after the LED flashes RED.
Battery Types Pilots can choose to use either two AA alkaline or rechargeable lithium ion batteries. Lithium ion batteries may provide improved battery life in colder temperatures.
The easy to replace battery pack gives you the option of using AA batteries or the included rechargeable lithium ion battery pack.

Additional batteries and cartridges are available at LightspeedAviation.com
Battery Life
Lightspeed’s Auto Shutoff feature saves battery life by automatically shutting down the headset power when not in use. Delta Zulu will auto shut off approximately five minutes after the headset has been removed from your head.
Lithium-Ion batteries can provide over 30 hours of power and will take approximately 8 hours to charge when fully depleted. However, theses batteries can be charged while the headset is in use via USB cable power. Supplemental AA batteries can extend your power up to 15-20 hours. Heavy Bluetooth wireless usage can reduce battery life.

Getting Started
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Getting Started

A B C
D E F G H I J
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Controller

A. Power Indicator LED: Flashes GREEN when power is supplied to Delta

Zulu and batteries are strong. LED Flashes RED when batteries are low.

K

At this point there is approximately 25% of battery life left.

B. Power Button: Powers on headset, turning on Active Noise Reduction (ANR). Press button once to turn Delta Zulu on; press and hold to turn Delta Zulu off. The Delta Zulu headset is in Bluetooth Discovery Mode when it is powered on. Hold for approx. 2-3 seconds and release to power down. LED brightness will be auto-detected and dim the light according to the amount of light present.

C. Volume Control: Controls audio panel volume with individual sliders for each ear. Does not affect the volume of auxiliary devices.

D. The Multi-function Button (or Smart Button): a dynamic button with a number of functions. Delta Zulu and App initial functions: Single Press: CO level / mute alerts if in alert (does not change) Double Press: Toggle between Established HearingEQity On / Off* Press and Hold: Force Bluetooth Pairing (Default selection)

Getting Started

E. Audio Center: will skip/reverse/FF/Pause/Play music tracks and answer

or end calls. This applies not just for Bluetooth, but for ALL auxiliary audio

A

device sources.

B

C

K

F. Audio LED: Flashes BLUE when Bluetooth mode is on and RED when

Bluetooth mode is being turned off. In pairing mode, flashes alternate

RED and BLUE.

D E

G. Audio Volume Buttons: Controls the volume of devices connected

F

via Bluetooth wireless technology.

G
H. ComPriority Button: When enabled, automatically quiets music and audio

H

from auxiliary devices during radio communications.

I

I. Personalization Icon Chip

J

J. Battery Module Release Buttons

K. UAC Port (not shown – on reverse side): provides connection to USB-A, USB-C, lightning, or 3.5mm audio plugs via cables

*In order to toggle to a Hearing Profile, you first must establish your profile in the Lightspeed

App. Then this function can toggle between that profile and the default equalization profile.

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Using Your Delta Zulu Headset

Turning Delta Zulu ON and OFF ON: Press the power button for about 1 second and release to turn on the headset. The GREEN power LED flashes when power is supplied. Active Noise Reduction (ANR) is engaged when you turn on the headset.
OFF: Press and hold the power button for 2-3 seconds, then release, then the LED will turn off.
Auto Shutoff: Delta Zulu will automatically shut off approximately five minutes after removing the headset to conserve the life of your batteries.
Power LED: The power LED flashes RED when batteries are low. Remember, your headset will continue to operate for 4-5 more hours. (See Battery Installation on page 8.)
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Sensors ­ Location, Purpose, Audible Warnings
Through Kanari smart alert technology, audio warnings are delivered through the Delta Zulu headset to allow you to more quickly make necessary adjustments.

Embedded sensors automatically provide real- time environmental data to help keep you safe.

Audio Input/Output Diagram

Radio & Intercom Signals · Operates independently of any auxiliary devices or battery power · Is fail safe

Auxiliary Device #1 ­ Bluetooth · Multiple apps can be open · One “audio centric” app will take control of audio output · Last one to process signal will take control · The Lightspeed App must be connected via Bluetooth to making recordings and to see sensor data during or after a flight

KanariTM Smart Alerts · Operates independently of any auxiliary devices · Will not operate if headset batteries die

Auxiliary Device #2 ­ UAC Connector · Operates independently of devices connected via
Bluetooth

Using Your Delta Zulu Headset

Matching Stereo/Mono Setting to an Audio Panel
The Stereo/Mono DIP switch setting should match the signal from your audio panel. Delta Zulu is shipped with the Mono setting on. You will need to change the setting to Stereo if you use a stereo panel found with panel power installations. STEREO should be used for a stereo panel and MONO for a mono panel.
Incorrect settings result in communication being heard in only one ear or weakly in both ears.
The Stereo/Mono DIP switch does not affect auxiliary devices, so you can enjoy auxiliary audio in stereo regardless of how the Stereo/Mono DIP switch is set.
ComPriorityTM
ComPriority is enabled by default when you power on your headset.

ComPriority is turned on or off by the bottom controller button. The pilot will be notified via an audio cue that the function is enabled or disabled. When ComPriority is enabled and radio communications are detected, ComPriority automatically lowers the volume of any auxiliary device during radio or intercom transmissions. For instance, when listening to music using a wired or Bluetooth device, your auxiliary music volume will decrease when you begin to speak. The soft mute feature gently eases music back in for a smooth listening transition.
ComPriority should be disabled before making cell phone calls because the other party will be muted.
To enable/disable ComPriority, press the bottom controller button, which is a toggle button, to either enable/disable ComPriority.
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Using Your Delta Zulu Headset

Mic Gain Adjustment The dual aperture disc microphone is factory set for optimal use with most pilots and aircraft. Our exclusive user-adjustable mic gain helps to balance loud and soft voices in a multi-headset environment.
To access the gain adjustment dial:
1. Remove the foam windscreen on your microphone
2. Remove the small cap next to the Lightspeed logo.
3. Turn the dial clockwise to increase gain sensitivity and counterclockwise to decrease gain sensitivity.
4. Move the dial in small increments 14 (visualize 1-hour increments on a clock face)

5. Test it in your aircraft.
6. Replace the cap and foam windscreen when you are satisfied with the adjustment.
Setting DIP Switches DIP switches are factory set to match most aircraft audio panels.
To Change a DIP Switch Setting 1. Open the controller battery/DIP switch door.
2. Use a small pointed object (such as a wood toothpick) to slide the DIP switch to ON or OFF, depending on your preference.

Using Your Delta Zulu Headset

Delta Zulu DIP Switch and Their Recommended Use

DIP switch
Stereo/Mono 1=Stereo/mono

OFF position
Stereo Default setting for panel power

2=Auto Off enabled
Cell mic bias–two switches that must both be in the same position 3 & 4=Cell mic bias

OFF = Will not allow headset to power off by itself
Cell mic bias OFF–Factory setting for helicopter and panel-powered headsets

DIP switch 5

To enable power on and/or charging switch 5 must be in the OFF position

ON position Mono–Factory Setting for GA/ Heli
ON = Allows it to turn off by itself

Recommendations
Affects audio from the aircraft panel only. Set to Stereo only if you are using a stereo panel. If your audio panel produces a mono signal but the switch is set to Stereo, you will hear audio communications in only one ear or weakly in both ears.
Auto Off enabled

Cell mic bias ON– Factory setting for battery-powered airplane headset
To disable power on and/or charging switch 5 must be in the ON position

General Aviation: Allows you to make phone calls with the headset when it is not plugged into a cockpit audio panel. Available for battery-powered headsets only.
Helicopter Pilots: The ON setting for these switches is incompatible with some helicopter audio panels. If you plan to use this feature and keep the switches set to ON, test the headset in the cockpit before takeoff.
Switch 5 on the product is an enable/disable function for charging over USB. This is useful for disabling charging from an iPad (iPad Pro) with USB-C. However, if it is disabled then the headset will not power or charge over either USB-C or USB-A.

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Using Your Delta Zulu Headset
Personalizing Your Headset (4 icon chip set)
Because your preferences and HearingEQityTM profile are stored in the headset, you may want to identify your headset when it is being used in the same plane as other Delta Zulus. You can personalize your own model by replacing the standard gold chip with another chip from the included icon set. To replace the chip, simply remove the battery module, and locate the color chip at the bottom of the controls surface. Using you fingernail, or a small plastic screwdriver, pry up on the color chip. Select the new color chip and center the color chip over the keyed hole in the control box. Once centered, press down on the color chip until it is flush with the surface of the control box.
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UAC Cables for Charging, Audio, and Data

UAC Plug
The Delta Zulu is the first headset to use a Universal Accessory Connector (UAC) which provides a single access point for charging, data communications, and auxiliary audio.
UAC Cables for Charging, Audio, and Data
Delta Zulu comes with one (1) 2-way direction UAC cable (USB ­ A to UAC) and is compatible with three more. A UAC connector is a smaller connector that has a standard port on one end of each cable, with the option of a USB-C, USB-A, Lightning, or 3.5mm jack at the other. The platform is also capable of audio and data transfer.
Lithium Ion Batteries charge with: · USB-A to UAC · USB-C to UAC

4 Types of UAC Plugs

1 Lightning Play music/phone use iPhone/iPad to UAC

2 USB ­ C to UAC

Play music/phone use Power charging

3 USB ­ A to UAC

Charging (external bottom pack)/Music on PC

4 3.5 mm to UAC

Music/Phone/Legacy iPhones/iPad

Auxiliary Devices (iPhone or iPad)
The Delta Zulu auxiliary input allows you to connect to cell phones and to most audio devices. To connect a music player to the Delta Zulu UAC plug, use the UAC cable that connects to your device. To adjust the volume on a device connected using the UAC plug, use the controls on the connected device or on the controller.
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Bluetooth® Wireless Technology

Bluetooth Features Depending on the Bluetooth profile of the connected device, you can use the Delta Zulu Bluetooth buttons to perform several functions. Some typical functions are:
· Press the Bluetooth button once for voice dialing (if supported by your phone).
· Press the Bluetooth button once to answer a call.
· Press the Bluetooth button once to disconnect from a call.
· Press and hold the Bluetooth button for two seconds to redial the last number called.
· Use the Bluetooth volume buttons (+ and ­ buttons) to adjust the volume. You may also adjust the volume on your connected device.
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Bluetooth Mode–ON and OFF
The Bluetooth feature automatically turns on when you power on the headset. On the first power up the headset will enter into pairing mode (as seen by an alternating red & blue LED). The headset will remain in pairing mode for approximately 1 minute to allow you time to open your settings on your phone or tablet and pair to the headset. On subsequent power ups, the headset will attempt to reconnect to the device that it was last paired to. If that device is not found, the headset will enter pairing mode again for 1 minute. If at the end of 1 minute no device is paired, the Bluetooth function turns off. To start the pairing process again, press the Multi-function Button (MFB) 3 times to enter forced pair mode.
Note: The Bluetooth feature must be turned on for devices connected via Bluetooth to function correctly.

Bluetooth® Wireless Technology

Pairing a Mobile Phone or Device
1. Turn on the headset and verify the GREEN power LED is flashing.
2. After 10 seconds, the Bluetooth LED will continually flash RED and BLUE. This indicates pairing mode and lasts about one minute. If this step takes longer and the Bluetooth LED is no longer alternating RED and BLUE, turn off the headset and begin again with step 1, or press the Multi-function Button 3 times.
3. When Delta Zulu is in pairing mode, follow the menu prompts on your Bluetooth wireless technology enabled device directing it to look for other Bluetooth wireless technology enabled devices.
4. Select Delta Zulu_#### (the numbers indicate the last 4 digits of the headset serial number) on your mobile device from the list of found devices.

Your mobile device should now be paired and ready for continued use with Delta Zulu.
When you turn on Bluetooth mode again, it will connect to the most recently paired device. Most mobile devices connect to Delta Zulu automatically. If that doesn’t happen, it may be necessary to use the settings menu of your device to choose and reconnect, or repair Delta Zulu_#### (numbers may vary).
Connecting Mobile Devices for the First Time
Bluetooth wireless technology with the Advanced Audio Distribution Profile (A2DP) enables stereo music streaming and the Hands-Free Profile (HFP) enables phone calls. Prior to using a cell phone or mobile device for the first time with Delta Zulu, it must be paired or electronically connected via Bluetooth wireless technology.
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Features of KanariTM Technology

Carbon Monoxide (CO) Detection The Delta Zulu headset has a built-in CO sensor to detect hazardous levels of CO.
CO can accumulate inside an aircraft’s cockpit in several ways including through leaky door seals, landing gear seals and the rear bulkhead.
The built-in sensor monitors the CO in the environment and will send an alert through the headset at the cautionary and critical levels.
Note: the KanariTM smart alerts work independently of the Lightspeed App. Connection to the app is not necessary – they work automatically.

CO Sensor
The built-in CO sensor is always on and monitoring. You have the ability to set your own timing for cautionary alerts (to be set from 5 to 15 minutes); For critical alerts, they come every 2 minutes, unchangeable.
· Adjustable Low CO threshold = 10-50 ppm (cautionary warning)
· Adjustable High CO threshold = 51-100 ppm (critical warning)

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Features of KanariTM Technology
Warnings and Errors The headset will continually monitor the status of all environmental sensors. If there is a malfunction, you will be alerted to the error. The warning alerts method can be setup in the Lightspeed app. The carbon monoxide alerts can be set up to provide voice only or a tone prior to the voice during alerts from the headset. Additionally, you can set the carbon monoxide alerts to alert you on the left, right, or both audio channels. The Multi-Function button is the way to mute the alerts from the headset.
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HearingEQityTM
HearingEQity HearingEQity uses your personal results from a custom built-in 12-frequency hearing test on your mobile device to analyze your hearing. With HearingEQity, every ATC call and conversation is optimized specifically for your hearing acuity.
Our new HearingEQity technology is an audio equalization system that compensates for your hearing loss.

HearingEQity is incorporated into the Lightspeed app which adjusts and sets the hearing levels in each of the ears of your headset. Using your mobile device, HearingEQity tests and personalizes your hearing experience using an automated 12-frequency analysis that transforms any hearing loss into remarkably clearer ATC and intercom communications, music and auxiliary devices. Using this test, a user profile is created and stored in the headset.
Once the profile is stored in the headset, the app does not need to be connected for HearingEQity to be active.

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Lightspeed App

Lightspeed App
The Lightspeed app makes data available during the flight for review in an instant. Pilots can review sensor data in real time or review data at the conclusion of the flight in addition to all of their data history. The Lightspeed app also has a recording function that allows you to record your radio and intercom audio for later use, and give you instant playback of anything in the past two minutes.
Lightspeed App Activation
Download the free app in the iTunes store.

Cockpit Voice Recorder
You can record conversations, playback transmissions, draw diagrams, and archive flight recordings onto your phone for post- flight briefing and training.
· Records all activity over the radio and intercom, including in-cabin conversation.
· Provides instant playback of any part of the past two minutes.
· Stores your recording library.

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Peak Performance Tips

Peak Performance Tips

In the event your headset may require service,

· Begin with an excellent fit. (See “Fitting your headset,” on page 6.)

registration helps assure quick and efficient processing and ensures you receive important communications about your product.

· To ensure peak ANR performance and comfort, replace the ear seals, head pads, and mic muffs

(See “Where is my product serial number” on page 27.)

every 18 months. As an owner of the Delta Zulu, · When packing your headset into its case, close

you are automatically enrolled into the Lightspeed

the sliders and place the mic over the headband

Wingman Club that provides you with a 30%

to avoid chafing the boom.

discount on all accessories available for purchase

on the Lightspeed website including these soft

goods. See details about this membership at

Programs

lightspeed-wingman-club/.

· We encourage you to register your headset at our website, LightspeedAviation.com.

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FAQs

Why do I hear radio communications in only one ear, or weakly in both?
The Delta Zulu Stereo/Mono DIP switch is likely set to Stereo while your audio panel is transmitting a mono signal. To fix this, change the Delta Zulu Stereo/Mono DIP switch to Mono (the “on” position). This setting does not affect music or audio from auxiliary devices; you can hear stereo sound on auxiliary devices even when the Stereo/Mono DIP switch is set to Mono.

phone indicate it cannot connect?
The headset may not be in pairing mode. To enter pairing mode, you must start with Bluetooth mode turned fully OFF. If you are having difficulty connecting, disconnect the battery cartridge and start the pairing over. It’s a good practice to turn off Bluetooth before turning off your headset which may help retain the pairing.

Why is the Smart Button action “Force Bluetooth How can I reduce static noise during cell phone calls? Pairing” not working?

To reduce RF interference during phone calls, keep cell phones at least 12 inches from the Delta Zulu controller and headset when making calls.
When pairing Delta Zulu with my phone via Bluetooth wireless technology, why does my

A smart device may already be connected to your headset. If the device is playing music, on a phone call or using Cockpit Voice recorder, the headset prevents unpairing for safety concerns. Please pause music, end the call, or stop the Cockpit Voice recorder recording to return the device to “idle”. Once this has been achieved, please attempt Bluetooth Pairing again.
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FAQs

During take off or occasionally in cruise, I sometimes here a popping’ or low rumbling sound. What causes that…and how can I fix it? Some intermittent popping is typically a byproduct of noise or vibration that creates an instability in the ANR electronic performance. Noise levels, or cup movement, causes the ANR system to be chasingnoise’ that is intermittent and hard to cancel. The instability can cause the artifact that sounds like popping.
Headset fit is the best, most important tool to eliminate these occasional noise artifacts. The two main reasons for this behavior would be the position of the cups on your head and the seal around your ears.

1. Follow the fit instructions on page 6 to insure it is comfortably positioned and high enough to not rest to much on your jaw. If you are consistently having this popping’ problem, call and request a taller headpad. 2\. Try to ensure the earlobe is fullyinside’ the cup and then minimize the leaks that might occur around sunglass frames. Many are very flat but non- aviator versions might have significant thickness in the frames. To test for whether the seal is good, press in slightly on the cup (during any popping) and see if it goes away.
If additional help is still needed, please reach out to our Customer Service line and we can provide more customized solutions.

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FAQs

The ear cups are resting on the tops of my ears, which is uncomfortable. How can I adjust my ear cups for the best possible fit?
To center your ears within the ear cups, a taller head pad should solve this problem. This will move the ear cups further up the side of your head so you can center your ears within the cups.
Order a complimentary tall head pad (Part No. A484) by calling Customer Service at 800-332- 2421, or email our Sales department at sales@Lightspeedaviation.com. You will need to provide your headset serial number.

Where can I find my product serial number?
The Delta Zulu serial number (a small, white, barcode sticker with numbers) is located on the headset underneath the head pad on the inner radius of the headband. Remove the head pad to reveal the serial number. Simply pinch the cushioned part of the head pad, pull down and it will snap out.
When I make a cell phone call, I can’t hear the person I`m calling. What’s the problem?

Always disable ComPriority before making cell phone calls because the other party will be muted. When activating the ComPriority button, an audible message will report the function is “enabled” or “disabled”.
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FAQs

My Delta Zulu seems to have a higher voice threshold to trigger communication. I have to speak more loudly, or position the mic closer to my mouth, to break squelch. Compared to my Zulu 2 or Zulu 3, is that true? What can I do to improve this?
The Mic and pre-amp on the Delta Zulu mic was modified to create less background noise when you break squelch and speak. It creates a quieter flying experience for all attached to your ICS system. Used individually, you will naturally compensate for that with an adjustment to your squelch setting. While that is a positive for overall system noise reduction, some people will experience the difficulty you described.

To ensure you gain the benefits of this additional quieting performance, please do the following IF your other headsets are from Lightspeed Aviation:
1. On the NON-Delta Zulu models, remove the mic muff and then remove (carefully, they are easy to lose!) the small black cap on the back side of the microphone holder.
2. With a small, jeweler’s flathead screw driver, insert it into the slot’ and turn the internal gain potentiometer inside counter clockwise 1Hour’ (like from the 11:00 position to 10:00).
3. Re-attached the black cap and try it out in your plane. I suspect it will have largely equalized the squelch setting that will work well for all your headset.

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FAQs

If you have only a single squelch intercom control Exactly what does Mic Gain Adjustment do?

and do NOT have Lightspeed headset, the other brands don’t provide this customizing feature. Sadly, you will have to do the `reverse’ of the above, and forfeit some of the quieting available in a Lightspeed

Mic gain adjusts the sensitivity of the microphone to help balance loud and soft voices you hear in a multi-headset environment.

Ecosystem.

How do I activate ComPriority?

1. On the Delta Zulu models, remove the mic muff and then remove (carefully, they are easy to lose!) the small black cap on the back side of the microphone holder.
2. INCREASE the gain on your Delta Zulu headset… start with one `hour’ (so 11:00 to 12:00).

ComPriority is automatically enabled by default when you power on your headset.
Turn on or off ComPriority using the bottom controller button. When ComPriority is enabled and radio communications are detected, the volume of auxiliary devices will be significantly reduced to

3. Re-attached the black cap and try it out in your make incoming communication the priority.

plane and with your ICS. I suspect it will have

largely equalized the squelch setting that will

work well for all your headsets. You will likely

experience a higher level of background noise

when your mic is `open’.

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FAQs

How do I ensure that I am matching the Stereo/ Mono Setting to my Audio Panel?
The Stereo/Mono DIP switch setting should match the signal from your audio panel. Delta Zulu is shipped in Mono (the “on” position). Unless you are using your intercom or Audio panel to provide Stereo music to listeners, there is no reason to switch your dip switch settings to stereo. Bluetooth music will be played in Stereo even with a “Mono” setting.

How do I change a DIP Switch Setting? DIP switches are factory set to match most aircraft audio panels. To change a DIP Switch setting:
1. Slide off the battery cartridge to reveal the DIP switch.
2. Use a small pointed object (such as a wood toothpick) to slide the DIP switch to ON or OFF.

STEREO should be used for a stereo panel and MONO for a mono panel.
Generally no changes are needed to deliver optimal performance in most aircraft. Certain audio panels require the portable units to be set to the Stereo position. Please refer to the list provided on our Website FAQ’s.
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Does it really matter if I register my headset?
Absolutely! Registering your headset will assure quick and efficient processing of any repair or accessory purchases that you may need. If you purchased your Delta Zulu headset directly from Lightspeed, your headset is already registered with us.
You will need your serial number to register your headset or make a request for warranty repair.

What is the warranty for a new headset? Lightspeed Aviation, Inc. has a 7-year limited warranty for new Zulu series headsets.
How long do the ear seals, head pads, and mic muffs last? To ensure peak ANR performance and comfort, replace the ear seals, head pads, and mic muffs every 18 months. These are wear items that are not covered by the Lightspeed warranty and are available for purchase on our website at LightspeedAviation.com/Accessories.

FAQs
In addition to Bluetooth, how do I connect my music player to the Delta Zulu headset? To connect a music player to the Delta Zulu auxiliary input jack, use an appropriate UAC cord. To adjust the volume on a device connected using the auxiliary input jack, use the controls on the connected device.
What kinds of batteries are recommended in the battery pack? Easy to replace battery packs give you the option of using AA batteries or the included rechargeable lithium ion battery pack, your choice.

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Specifications
General Battery power supply: 3V, two AA batteries; 3.7V rechargeable lithium ion battery Weight: 14.9 oz. (including ear seals, head pad and mic boom)
Headphone Transducer: 40mm moving coil Frequency response: 20 Hz-20 kHz Nominal impedance @ 1 kHz: OFF–Mono: 275 ohms, ON–Mono: 295 ohms OFF–Stereo: 575 ohms, ON–Stereo: 590 ohms
Active Noise Reduction (ANR) Maximum SPL: Greater than 125 dB at 100 Hz
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Microphone Transducer principle: Noise-canceling electret Frequency response: 200 Hz-6000 Hz Maximum SPL: 114 dB Terminating impedance: 220­2200 ohms Operating voltage: 8V-16V DC
Power Source Panel Power Aircraft 8-40 VDC; power from aircraft
Connectors Dual General Aviation plugs U-174 (Heli) LEMO (panel power) Others available as a special order

UAC Connections Included with the headset: USB-A to UAC = Charging (external bottom pack)/music on PC
Available for purchase on the Lightspeed website (https://www.lightspeedaviation.com/productcategory/accessories/)
· Lightning to UAC = Play music/phone use/ iPhone/iPad
· USB-C to UAC = Play music/phone use
· 3.5mm to UAC = Music/phone/legacy iPhones/ iPad

Specifications
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Warranty Information

7-Year Limited Warranty for New Aviation Headsets Sold by Lightspeed Aviation, Inc. Lightspeed Aviation, Inc. (“LSA”) warrants that the new aviation headset sold by LSA (“New Headset”) is free from all material defects in workmanship and materials. For the New Headset, all warranties provided by LSA and all implied warranties imposed by law are limited to a 7-year period, beginning on the purchase date shown on the New Headset’s sales receipt (“Warranty Period”). This 7-year Limited Warranty (“Limited Warranty”) is provided solely for the benefit of the initial purchaser of the New Headset (“Purchaser”), and it excludes all 3rd parties, including distributors, dealers, retailers, subsequent owners, and other users of the New Headset. This Limited Warranty is not assignable and remains in full force and effect during the Warranty Period, but only if the New Headset: (a) has been properly maintained; (b) has not been abused or misused; and (c) has not been repaired, altered, or modified without LSA’s approval.
This Limited Warranty specifically excludes all taxes, shipping costs, and problems relating to any: (1) repair, alteration, or modification not approved by LSA; (2) abuse or failure to properly maintain the New Headset; (3) faulty workmanship by any person, except LSA or its approved agent; (4) operation of the New Headset, except as specified in its operating manual; (5) ordinary wear and tear; or (6) finish and appearance item. For each claim made under this Limited Warranty (“Claim”), Purchaser must, within 10 days of discovering a New Headset problem indicating a breach of this Limited Warranty, deliver to LSA a written notice that explains in detail the New Headset’s specific defect, that shows proof of Purchaser’s purchase of the New Headset before the end of the Warranty Period, and that shows proof that this Limited Warranty applies to the New Headset. LSA or its agent may investigate any Claim. For each Claim, LSA may, in its sole discretion, choose any of the following exclusive remedies: (I) repair or replace the New Headset or any part thereof, without charge to Purchaser, but first Purchaser must return the New Headset to LSA’s authorized repair facility, pre-paying all shipping charges, and Purchaser must accept the same as repaired or replaced at the facility’s location (i.e., FOB the facility) within 10 days of the date of LSA’s completion notice sent to Purchaser, or else LSA will deem the New Headset abandoned, in which case LSA may keep, sell, or otherwise discard it; or (II) refund the New Headset’s purchase price to Purchaser.
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Without paying any amount to Purchaser, LSA may keep, sell, or otherwise discard all replaced New Headsets and parts thereof and all New Headsets where LSA has refunded the purchase price to Purchaser. In repairing or replacing any New Headset, LSA may, in its sole discretion, use new, used, or reconditioned parts or provide a refurbished used headset as a replacement. In connection therewith, LSA warrants that all new, used, or reconditioned parts or refurbished used headsets will be free from all material defects in workmanship and materials during the Warranty Period and for a period of up to 90 days thereafter, but only to the extent that such event occurs during the final 90 days of the Warranty Period. LSA may, in its sole discretion, (i) establish separate, additional, non-warranty repair and replacement programs for any new or used headset (“NonWarranty Service Programs”), (ii) the Non- Warranty Service Programs may cover any time period, before or after any Warranty Period has expired, and (iii) charge any amount and impose any term with respect to any Non-Warranty Service Program. For Non-Warranty Service Programs, LSA warrants that all new, used, reconditioned, or refurbished parts and headsets used to repair or replace any headset will be free from all material defects in workmanship and materials, but only for a limited period of 90 days thereafter. Purchaser acknowledges that used or reconditioned parts may be used to repair any new or used headset, and that a refurbished used headset may be provided as a replacement for any new or used headset. LSA may hire a 3rd party to repair or replace any new or used headset.”Including”means”including, but not limited to. “THE TERMS IN THIS DOCUMENT ARE THE ONLY TERMS THAT GOVERN LSA’S WARRANTY OBLIGATIONSFOR ANY NEW OR USED HEADSET OR PART THEREOF. NO ORAL OR OTHER WRITTENTERM APPLIES. THIS DOCUMENT PROVIDES THE EXCLUSIVE REMEDY FOR ALL CLAIMS AGAINST LSA WITH RESPECT TO ANY NEW OR USED HEADSET OR PART THEREOF. NOTWITHSTANDINGANY PROVISIONTO THE CONTRARY IN THIS LIMITED WARRANTY, LSA RESERVES THE RIGHT TO MODIFY, AT ANY TIME AND FROM TIME TO TIME IN ITS SOLE DISCRETION, ANY AND ALL TERMS IN THIS LIMITEDWARRANTY. EACH SUCH MODIFICATION IS DEEMED EFFECTIVE UPON PUBLICATION ON LSA’S WEBSITE OR OTHERWISE. Our goal is to provide helpful and accurate information through the Lightspeed App, but we make no endorsement, representation, or warranty of any kind about any data, content, information, or services. The accuracy of the data collected and presented through the Lightspeed App is not intended to match that of medical devices or scientific measurement devices.

Product Registration

TO THE EXTENT ALLOWED BY LAW: LSA DISCLAIMS AND PROVIDES THIS LIMITEDWARRANTYIN LIEU OF ALL OTHER EXPRESS OR IMPLIEDWARRANTIES, INCLUDING ANY WARRANTYOF MERCHANTABILITYOR FITNESS FOR A PARTICULAR PURPOSE. LSA IS NOT LIABLE FOR CONSEQUENTIAL, INCIDENTAL, PUNITIVE, INDIRECT, SPECIAL, LOST PROFITS, OR SIMILAR DAMAGES CLAIMED UNDER ANY STATUTE OR LEGAL OR EQUITABLETHEORY. LSA’S TOTAL LIABILITY FOR ALL CONTRACT, TORT (INCLUDING NEGLIGENCE), STATUTORY, OR OTHER CLAIMS ARISING FROM OR RELATINGTO THIS LIMITEDWARRANTYOR ANY HEADSET OR PART THEREOFIS LIMITEDTO $1,000. SOME STATES DO NOT ALLOW THE LIMITATION OF CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS MIGHT NOT APPLY TO PURCHASER. THIS LIMITED WARRANTY GIVES PURCHASER SPECIFIC LEGAL RIGHTS, AND PURCHASERMIGHT HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE.
FOR PURCHASERS IN CALIFORNIA: PURCHASER HAS THE RIGHT TO HAVE THE NEW HEADSET SERVICEDAND REPAIREDDURING THE WARRANTY PERIOD. THE WARRANTYPERIOD WILL BE EXTENDEDFOR THE NUMBER OF WHOLE DAYS THAT THE NEW HEADSET HAS BEEN OUT OF PURCHASER’S HANDS FOR WARRANTYREPAIRS. IF A DEFECT EXISTS DURING THE WARRANTY PERIOD, THIS LIMITED WARRANTY WILL NOT EXPIRE UNTIL THE DEFECT HAS BEEN FIXED. IF ANY WARRANTY REPAIR HAS BEEN DELAYEDBECAUSE OF CIRCUMSTANCESBEYONDPURCHASER’S CONTROL, OR IF ANY WARRANTY REPAIR DID NOT REMEDY A DEFECT AND PURCHASER NOTIFIES LSA OF SUCH FAILURE WITHIN 10 DAYS AFTER THE REPAIR, THE WARRANTY PERIODWILL BE EXTENDED FOR A PERIODEQUAL TO THE DURATION OF THE DELAY. IF, AFTER A REASONABLENUMBER OF ATTEMPTS, THE DEFECT REMAINS UNFIXED, PURCHASERMAY RETURNTHE NEW HEADSET FOR REPLACEMENT OR REFUND, SUBJECT TO A REASONABLE DEDUCTION FOR PURCHASER’S USE OF THE NEW HEADSET. ANY EXTENSIONOF THE WARRANTY PERIODDOES NOT AFFECT ANY PROTECTIONOR REMEDY AVAILABLETO PURCHASER UNDER APPLICABLE LAW.
Cert: 00465053 Lightspeed Aviation, Inc.’s Management
System is Registered to ISO 9001 2015

Please register at LightspeedAviation.com
to optimize your customer experience.
Maximum output power: 4 dBm Frequency band: 2.4G band (2.400GHz-2.485GHz)
Hereby, Lightspeed Aviation declares that the radio equipment type Delta Zulu is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at www.lightspeedaviation.com
Transducer principle: Noise-canceling electret Frequency response: 200 Hz-6000 Hz Maximum SPL: 114 dB Terminating impedance: 220­2200 ohms Operating voltage: 8V- 16V DC. Per FCC 15.19(a)(3) and (a)(4) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Caution: Per FCC 15.21, any changes or modifications to this system not expressly approved by Lightspeed Aviation could void the user’s authority to operate the equipment.
Per FCC 2.1033, this file must contain a copy of the installation and operating instructions to be furnished the user. A draft copy of the instructions may be submitted if the actual document is not available. The actual document shall be furnished to the FCC when it becomes available.
Verify that all operating modes, technical specifications, antennas, and operating frequencies are in agreement with the tested device and the frequency block diagram.
For FCC Submissions, the following warning statements are required to be included in the user manual.
Per FCC 15.19(a)(3) and (a)(4) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Per FCC 15.21, The user manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Per RSS-Gen, Section 8.4 This device complies with Industry Canada license- exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes: (1) l’appareil ne doit pas produire de brouillage; (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
Per RSS-Gen, Radio apparatus shall comply with the requirements to include required notices 35
or statements to the user of equipment with each unit of equipment model offered for sale.

Lightspeed Aviation 6135 Jean Road Lake Oswego, Oregon 97035 support@lightspeedaviation.com 800.332.2421 Toll Free 503.968.3113 Tel 503.968.7664 Fax
LightspeedAviation.com

© 2022 Lightspeed Aviation, Inc. All rights reserved. ComPriority, Front Row Center, and Auto Shutoff are trademarks of Lightspeed Aviation, Inc. Lightspeed is a registered trademark of Lightspeed Aviation, Inc. iPhone® and iPad® are trademarks of Apple, Inc., registered in the U.S. and other countries. “Made for iPhone” and “Made for iPad” mean that an electronic accessory has been designed to connect specifically to iPhone or iPad, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPhone or iPad may affect wireless performance. The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Lightspeed Aviation is under license. Other trademarks and trade names are those of their respective owners. Specifications are subject to change without notice.
Part Number 704-00028-000. REV0922

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