A20 aviation headset

Sold from 2025 – present

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Setting operation switches in your headset control module

The switches in the control module of your headset let you customize certain settings. These are useful to tailor the headset for the situations or aircrafts in which you use it.

To set the operation switches:

Remove the batteries (if installed) from the control module to access the operation switches then use a small utensil (e.g. a small flat screwdriver) to adjust the switches.

Switch	Use
AUDIO	This setting configures the headset for use with mono or stereo intercoms. Select MON (default setting) if your aircraft has a mono intercom so sound if heard in both ears Select ST if your aircraft has a stereo intercom so different sound can be sent to both ears
AUTO OFF	This setting can power off your headset automatically after several minutes or inactivity. Note: On battery power while disconnected from an intercom, the headset will auto-power off even if AUX audio is playing. Also, on a Bluetooth® phone call while disconnected from an intercom, the headset will auto-power off three to nine minutes after the call is ended. Select ON (default setting) to have the headset automatically power off after three to nine minutes of inactivity Select OFF to disable the headset from powering off until you press and hold the power button on

Switch

Use

AUDIO

This setting configures the headset for use with mono or stereo intercoms.

Select MON (default setting) if your aircraft has a mono intercom so sound if heard in both ears
Select ST if your aircraft has a stereo intercom so different sound can be sent to both ears

AUTO OFF

This setting can power off your headset automatically after several minutes or inactivity.

Note: On battery power while disconnected from an intercom, the headset will auto-power off even if AUX audio is playing. Also, on a Bluetooth® phone call while disconnected from an intercom, the headset will auto-power off three to nine minutes after the call is ended.

Select ON (default setting) to have the headset automatically power off after three to nine minutes of inactivity
Select OFF to disable the headset from powering off until you press and hold the power button on