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4 - English
Contents
Introduction ......................................................................................... 6
About your Bose
®
A20
®
Aviation Headset .......................................................................... 6
Our commitment to you ........................................................................................................ 6
What’s included ....................................................................................................................... 6
Components .............................................................................................................................7
Control module variations ............................................................................................8
Power and cable variations .......................................................................................... 9
Preparing the Headset for Use ......................................................... 10
The microphone assembly ..................................................................................................10
Attaching the microphone assembly ........................................................................10
The battery compartment .................................................................................................... 11
Opening the battery compartment ............................................................................ 11
The operation switches ................................................................................................. 11
Changing the operation switches ............................................................................... 11
Auto On .....................................................................................................................12
Auto Off .................................................................................................................... 12
Inserting and replacing the batteries ........................................................................13
Connecting the headset to the aircraft .............................................................................13
Using the 6-pin plug .....................................................................................................13
To connect the headset .........................................................................................13
To disconnect the headset .................................................................................... 14
Using the dual general aviation plugs.......................................................................14
Using other plug types ................................................................................................. 14
Using the Headset .............................................................................. 15
Wearing and adjusting the headset ...................................................................................15
Conditions related to fit ...............................................................................................15
Microphone placement ................................................................................................16
Clothing clips .................................................................................................................16
Using the control module .................................................................................................... 17
Power button ................................................................................................................. 17
Power indicator ..............................................................................................................18
Intercom volume controls ...........................................................................................18
Primary and secondary audio sources ..............................................................................19
AUX audio sources (wired) ................................................................................................... 19
Bluetooth
®
audio sources (wireless) ..................................................................................19
Using the headset with a Bluetooth
®
device ..........................................................20
Pairing the first device ..........................................................................................20
Pairing another device ........................................................................................... 21
Switching between connected devices...............................................................21
Bluetooth multi-function button .........................................................................21
4


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