Bose A20 - Control Module Functions

Using the Headset
English - 17
Using the control module
If you purchased the Bluetooth
®
version of the headset, you received the Bluetooth
control module. If not, you received the conventional control module.
Bluetooth
®
control module Conventional control module
Left/Right
Intercom Volume controls
Power indicator
Power button
Bluetooth
Volume Up button
Auxiliary (AUX)
audio input
Bluetooth
Volume Down button
Bluetooth
indicator
Bluetooth
multi-function
button
Secondary Audio
Mode selector:
Mute
Intercom
prioritized over
secondary
sources
Mix
Intercom
mixed with
secondary
source(s)
Off
Intercom only
Mute
Intercom
prioritized over
secondary
sources
Mix
Intercom
mixed with
secondary
source(s)
Off
Intercom only
Secondary Audio
Mode selector:
Power button
Action What to do
Turn on the headset
Press
once.
Turn off the headset
Press and hold
for three seconds.
Note: When powered off, the headset will still provide pas-
sive audio communications.
Note: Repeated pressing will not speed up the power off
event. If the unit does not power off, wait 3 seconds
try again.
Dim the power and
Bluetooth indicators
Press
twice quickly. Repeat to brighten.