Headphones User Manual
19
Tab 6, 14
English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13
Tab 8, 16Tab 7, 15
USING THE HEADSET
Using the headset 
with a Bluetooth
®
-enabled phone
Pairing the headset with your phone
Pairing entails having the Bose A20
®
 Aviation Headset in pairing mode, setting 
your Bluetooth-enabled phone to “discover” the headset, then confirming the 
connection on the phone. Before you use your Bose
®
 A20 Aviation Headset 
with your mobile phone, you must pair the two devices.
1. Turn on the headset and make sure the multifunction switch is in the top or 
middle position, NOT in the emergency off position.
The power indicator light glows green or yellow, depending on the charge 
level of the battery. If the light is red, the battery is low and needs replacing.
2. Press the Bluetooth
function button (to activate Bluetooth.
If this is the first time you’ve activated or are attempting 
to pair Bluetooth, the Bluetooth indicator will flash at a 
slow rate alternating with the Power indicator. This 
indicates that the headset is in “discoverable” mode 
and ready to be paired to a cell phone.
If the Bluetooth indicator does not flash alternately with the Power indicator 
flash or you are trying to pair a headset that has previously been paired with 
another phone, you will need to press and hold the Bluetooth function 
button for 5 seconds in order to put the headset into “discoverable” mode.
3. With your Bluetooth-enabled phone turned on, locate the Bluetooth feature, 
usually under Tools, Connect, or Bluetooth Devices. (Refer to the owner’s 
instructions that came with your phone for further details.)
4. Set the phone to “discover” or “add” a Bluetooth device. When Bose A20 
appears in the list of devices, select and confirm this choice. 
5. If you are asked for a passkey or PIN, enter the digits 0000. 
The control module Bluetooth and power indicators flash together to confirm 
successful pairing. 
If pairing is unsuccessful, repeat steps 3 - 5 above.
Multifunction Switch 
Middle position
Power 
indicator light
Power button
Top position
Bluetooth 
indicator
00_Cavu.book Page 19 Wednesday, April 25, 2012 10:10 AM










