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Refer to the Bose ProFlight Series 2 Aviation Headset 

owner’s guide accompanying your Bose ProFlight Series 2 

Aviation Headset for more information. To request a printed 

copy, contact Bose customer service.  

Visit: worldwide.Bose.com/Support/ProFlight2 

Important Safety Instructions 
WARNINGS/CAUTIONS

•  Do NOT use the headphones with noise canceling mode 

at any time the inability to hear surrounding sounds may 

present a danger to yourself or others, e.g., while riding a 

bicycle or walking in or near traffic, a construction site or 

railroad, etc.

•  Keep batteries out of reach of children.
•  Please dispose of used batteries properly, following any  

local regulations.

•  Danger of explosion if batteries are incorrectly replaced.
•  Batteries may cause a fire or chemical burn if mishandled.  

Do not recharge, disassemble, heat, or incinerate.

•  When a replacement is needed, use only a AA (LR06) 

alkaline batteries.

Please read and save this guide

Please read this guide carefully. Save this guide for future 
 reference and make it easily accessible for passengers and  
third parties who use this headset.
• 

Switch to an alternate communications method in the 

event of a headset issue.

In the unlikely event of any headset issue or failure in 
the passive noise reducing mode, switch to an alternate 
 communications method and use standard cockpit resource 
management skills to minimize distractions.

• 

Use the headset at a moderate volume level.

To avoid hearing damage, use the headset at a  comfortable, 
moderate volume level. Limit the headset volume to 
safe levels that do not interfere with your ability to hear 
 informational sounds and warning alarms, such as stall 
warnings or gear up, while piloting.

• 

Turn the headset off if it emits any loud noise.

As with any complex electronic device, it is possible for this 
headset to fail during operation. Symptoms of failure, which 
may include loud tones, distortion, feedback squeals and 
loss of communications signal in the headset, can occur in 
either the Acoustic Noise Cancelling mode (turned on) or 
in the passive mode (turned off). If the headset emits any 
loud noise and the related loss of communications in the 
Acoustic Noise Cancelling mode, turn off the power switch. 
The headset will continue to provide communications in the 
passive noise-reducing mode. If the problem persists, see 
the Troubleshooting section in the Bose ProFlight Series 2 
Aviation Headset owner’s guide.

• 

Be aware of sound differences while wearing the headset.

With the headset’s active and passive noise reduction, typical 
aircraft sounds (such as engines, propellers, warning alarms, 
and other sound sources) may not sound familiar. Make sure 
you can hear and recognize these sounds when using the 
headset while operating any aircraft.

• 

Do NOT make phone calls while piloting.

Do not use the headset for telephone calls during  
flight operations.

• 

Make sure your aircraft communications system volume 

control is easily accessible.

This control affects the strength of the communications 
 signal coming into the headset. Make sure you can 
 understand critical communications even with Acoustic 
Noise Canceling mode turned off. In this case, you may need 
to turn up the aircraft communications system volume. In 
passive mode, the volume controls on the control module 
will  automatically be set to maximum volume. For additional 
volume control, use the intercom or radio volume control. 
If your headset is aircraft powered, connect the headset to 
the aircraft power sources only as described in the Bose 
ProFlight Series 2 Aviation Headset owner’s guide.

• 

Make sure portable devices do not interfere with the 

aircraft’s navigation and communication systems.

It is the pilot’s responsibility to ensure that portable 
devices do not interfere with the aircraft’s navigation and 
 communication systems, as well as to determine if the 
portable device is suitable for use with the headset.

• 

Use only AA alkaline batteries.

To avoid risk of explosion, replace the batteries only with  
AA alkaline batteries. Properly dispose of used batteries.

• 

Do NOT repair the headset yourself.

Contact the Bose organization in your country/region for 
specific care, return and shipping instructions.  
Visit: global.Bose.com

• 

Do not use the headset with a helmet or as part of a crash 

protection system.

The headset is not intended for such use, and has not been 
certified for crash protection. Dismantling, reassembly or 
modification of the headset, or any part, for use in a helmet 
or other crash protection system could result in severe 
bodily injury and such unauthorized use will void the limited 
product warranty.

• 

Do NOT immerse the headset or any parts in water or any 

other liquid.

See the Bose ProFlight Series 2 Aviation Headset owner’s 
guide for cleaning  instructions.

Contains small parts which may be a choking hazard. 
Not suitable for children under age 3.

This product contains magnetic material. Consult 
your physician on whether this might affect your 
implantable medical device.

•  Do NOT expose this product to dripping or splashing, and 

do not place objects filled with liquids, such as vases, on or 

near the product.

•  Do NOT make unauthorized alterations to this product.
•  Do not expose products containing batteries to excessive 

heat (e.g. from storage in direct sunlight, fire or the like).

CONNECT THE MICROPHONE

1.  Align the release button to the   

release button opening, and insert  

the  microphone connector into the  

base of the connector socket.

2.  Slide the microphone connector into the 

connector socket until the release button 

is secure.

CAUTION: 

Do NOT force the  

microphone assembly into  

the connector socket.

3.  Test the headset before flight.

The microphone assembly can be easily 

 attached to the left or right side of the  

Bose ProFlight Series 2 Aviation Headset.

NOTE:  

The headset ships with the  terminator 

cover attached to right side. To attach 

the microphone assembly to the right 

side of the headset, you must first 

 remove the terminator cover and 

 attach it to the left side of the headset.

MOVE THE TERMINATOR COVER

1.  Push the release button into the release button 

opening, and gently pull the  terminator cover 

from the  connector socket.

2.  On the other side of the headset, align the 

release button to the release button opening, 

and insert the terminator cover into the base  

of the connector socket.

3.  Slide the terminator cover into the connector 

 socket until the release button is secure.

CAUTION: 

Do NOT force the terminator cover 

into the connector socket.

NOTE: 

If the terminator cover is not securely 

installed, there will be no audio  coming 

from that earbud.

Release button

Connector socket

Terminator cover

Release button  

opening

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