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Using the control module power and volume controls | Bose A20 Aviation Headset
bose-a20-aviation-headset
Casque d'aviation A20 avec BluetoothVendu entre 2015 - 2025

Using the control module power and volume controls | Bose A20 Aviation Headset

Power button

Use the power button to turn noise cancelling on or off, and control indicator brightness
  1. Press the power button once to turn on the noise cancelling function
  2. Press and hold the power button to turn off the noise cancelling function
  3. Press the power button twice rapidly to toggle between the dim and bright LED settings
The headset can take up to 6 seconds to turn on or off. Each additional press of the power button will cause the headset to take longer to complete the desired action. Avoid rapid presses of the power button when attempting to turn the headset on or off

Volume control
The left and right volume control wheels on the control module adjust the volume of the corresponding earcup. With noise cancelling off, volume control will be set to the maximum level. Overall headset volume control requires adjustments at both the aircraftintercom or radio and at the headset control module. Even at its lowest setting, neither volume control wheel can completely turn off the intercom audio.

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Using the control module power and volume controls | Bose A20 Aviation Headset