Headphones User Manual
20
Tab 3, 11
Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12
EnglishTab2 ,  1 0
USING THE HEADSET
Note: The Bose A20
®
 Aviation Headset will automatically exit pairing mode after 
five minutes of inactivity.
Bluetooth
®
 indicator light status
The Bluetooth indicator is a blue light on the control module. It shows the status 
of Bluetooth functions, as follows: 
Reconnecting to a previously connected phone
To reconnect the headset to a previously connected phone or other Bluetooth 
wireless technology device, briefly press the Bluetooth function button on the 
headset control module.
The headset control module attempts to connect with the last connected 
Bluetooth wireless technology device. 
Note: The Bose
®
 A20
®
 Aviation Headset can only be connected to one Bluetooth 
wireless technology device at a time. If you press the Bluetooth function button on 
the headset control module for more than five seconds, the currently connected 
Bluetooth wireless technology device is disconnected and the control module 
enters pairing mode.
Recovering a lost connection
When a connected Bluetooth wireless technology device moves out of range 
and the connection is lost, the Bose A20 Aviation Headset automatically 
attempts to reconnect. If a connection still does not exist after five minutes, the 
Bluetooth wireless technology receiver in the control module remains on, but 
not connected. The Bluetooth indicator on the Bose A20 Aviation Headset 
control module will exhibit a fast double flash initiated at each power indicator 
flash.
Disconnecting a Bluetooth technology-enabled phone
If you use a connected phone to end a Bluetooth wireless technology 
connection, the Bluetooth technology receiver in the headset control module 
remains on, but no longer attempts to connect. A Bluetooth wireless 
technology connection is ended by turning the phone off, ending the current 
call, or discontinuing the wireless connection.
Appearance Indication
Flashes slowly, alternating with the power indicator. Headset is discoverable or is pairing.
Flashes twice quickly with each power indicator 
flash.
Bluetooth technology is ON but not 
connected to a phone.
Flashes at the same rate with the power indicator 
(green or amber).
Bluetooth technology is ON and 
connected to phone.
Flashes once quickly with each power indicator flash. Headset is in an active phone call.
No light Bluetooth technology is not enabled.
00_Cavu.book Page 20 Wednesday, April 25, 2012 10:10 AM










