Bose ProFlight 2 Series Frequently Asked Questions Manual page 8

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FAQ Bose ProFlight Series 2 Aviation Headset
How does customizable audio
prioritization work?
MICROPHONE FAQ
What kind of microphone does the
Bose ProFlight Series 2 have?
POWER/BATTERY FAQ
What is the battery life of the Bose
ProFlight Series 2?
Can I use rechargeable batteries?
Can I use lithium-ion batteries?
How are the batteries installed?
What is flexible power?
For internal and reseller distribution only - Bose confidential
The control module has three possible user-defined prioritization states:
Mixed audio position: The intercom signal will be mixed with the
Bluetooth input signal.
Muted audio position: The Bluetooth auxiliary input signal will be muted
only when an ICS signal is present.
OFF: Bluetooth audio sources turned o for sterile cockpit operations.
Note: When a Bluetooth call is present, the audio from the call will always
mix with the ICS signal. The Bluetooth function is always disabled in the
passive mode and when the battery life indicator light is red.
The ProFlight Series 2 uses a noise cancelling electret microphone (often
called a high-impedance microphone), typical on most commercial aircraft.
It is optimized to reject far-field noise and improve performance with
"hot mic" systems.
Using two AA alkaline batteries, the ProFlight Series 2 will operate for at
least 45 hours of flying in typical aircraft noise. With continuous operation
of the Bluetooth® function, battery life will be at least 25 hours. As always,
battery life varies with the type of battery, the noise environment and
features used. The headset's battery life indicator light alerts the user when
batteries should be replaced.
Rechargeable batteries are discouraged because your flying-time battery
life will be reduced from the 45-hour life, depending on the type of battery
chemistry used. Rechargeable batteries also alter the accuracy of the
battery status indicator light, so that when the light changes to amber, you
will have less than the usual eight hours of flying time remaining that you
can expect with non-rechargeable AA alkaline batteries.
Lithium-ion batteries should not be used due to their typically higher voltage.
The two AA batteries fit lengthwise within the bottom of the control module.
The battery compartment is easily accessed by pushing down and, at the same
time, sliding the cover toward the headset. After the cover has cleared the
detent, lift the cover into a vertical position to place the batteries.
Flexible power is available for headset configurations that allow aircraft power.
When disconnected, the flexible power feature lets the headset switch
seamlessly from aircraft power to battery power, so users experience no
interruption when the headset is plugged into or unplugged from a source of
power. 6 pin LEMO, 7 pin and 5 pin XLR connectors have this function, and
also feature auto-on. The user may easily change from an aircraft-powered
configuration to a battery-powered configuration using adapters available
from Bose or third-party manufacturers.
AV I AT I O N
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