User Guide
Table Of Contents
- Our commitment to you
- About your Bose A20 Aviation Headset
- What’s included
- What’s in the carton
- The microphone assembly
- The battery compartment
- Connecting the headset to the aircraft
- Wearing and adjusting the headset
- Using the control module
- Primary and Secondary audio sources
- Instructions for continued airworthiness
- Cleaning the headset
- Replacing parts
- Troubleshooting
- Mounting the aircraft panel connector
- Locating the headset serial number
- Limited warranty service
- Contact information
Introduction
English - 7
Components
Clothing clip
Second
clothing clip
Carrying case
Headset
Control module
See “Control module
variations” on page 8
for options
2 AA alkaline
batteries*
3.5 mm AUX audio cable
Cable connector (varies)
Note: Cable connector types will vary based on model of headset. See “Power and
cable variations” on page 9.
Warning: * Replace batteries with alkaline batteries only. Do not use any other
battery chemistries.