Bose A20 Aviation 2015-present Quick reference guide - Page 1

Bose® A20® Aviation Headset Quick Reference Guide Please read the Important Safety Instructions enclosed in the carton. Bluetooth® control module Conventional control module 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 Left/Right Intercom Volume controls Power indicator Power button Bluetooth Volume Up button Bluetooth Volume Down button Auxiliary (AUX) audio input Secondary Audio Mode selector: Mute Intercom ­prioritized over secondary sources Mix Intercom mixed with ­secondary source(s) Off Intercom only Installing the batteries 1. Press down firmly on the finger indent and slide the battery cover down. The cover is t­ethered to the module. Do not attempt to detach it. 2. Insert two alkaline AA batteries into the control module, observing proper polarity. Warning: Replace batteries with alkaline batteries only. Do not use any other battery c­ hemistries.