Troubleshooting
No noise reduction
Low or no volume
Crackling noise;
intermittent loss
of
noise reduction
Low rumbling
sound
Volume too high
Microphone is not
picking-up sound
Phone not respond-
ing to button
presses
Apple product not
responding to
remote
8
• Make sure the headphones power
is
switched
on and the battery light indicator is
illuminated.
• Replace the battery.
• Make sure the audio source
is
on and the
volume
is
turned up.
• Set LEVEL switch
to
HI.
• Check the headphones cord connection at the
source and the earcup.
• Check the headphones cord connection at the
source and the earcup.
• Replace the battery.
• Adjust the fit
of
the headphones on your ears.
• Make sure no foreign objects are inside the
earcups.
• Make sure port holes are not blocked.
• Turn the source volume down.
• Set LEVEL switch
to
LO.
• Make sure that the headset plug is securely
connected to the headphone jack.
• Make sure the microphone is not being
blocked or covered.
The
microphone is located on the back
of
the
Answer/End button.
• Make sure that the headset plug
is
securely
connected to the headphone jack.
• For multi-press functions: Vary speed of
presses.
• Full controls may not be available for some
Apple products.
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Other
Considerations
QuietComfort® 15 headphones are designed for
passenger use on jet aircraft. They are not engineered
to
meet the needs
of
pilots and crew members or
to
meet civil aviation authority standards for
communication headsets.
For pilots and and crew members who require
communication headsets,
Bose®
offers
an
aviation
headset specifically designed
to
meet or exceed
civil authority standards. It features a microphone
with the appropriate power and intelligibility for
critical communication needs. It is also engineered
to
withstand the environmental conditions that are
common
in
unpressurized aircraft.
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