Using The Audio Cable - Sennheiser PXC 550 Instruction Manual

Setting the headphones to flight mode

Using the audio cable

There are 2 connection modes when you use the audio cable:
– Active mode - the connection mode when the audio cable is used on the
headphones with sufficient battery life.
– Passive mode - the connection mode when the audio cable is used on the
headphones with empty battery. NoiseGard is inactive.
Regardless of the position of the Bluetooth switch, Bluetooth is deactivated
when the audio cable is plugged into the audio input of the headphones. If the
USB cable is being used, the transmission via USB is disabled and the headphones
go to flight mode when the audio cable is plugged in.
When you are using the in-flight entertainment (IFE) system of your airline, the
audio from the IFE may be interrupted by important announcements from the
public address (PA) system. In most cases, the announcements are much louder
than the audio of the IFE. The PXC 550 Wireless headphones recognize this and
eliminate the volume jump when the sound source switches between PA and IFE
system.
After the announcement from the PA system, the volume of the headphones
stays low. If you want to increase the volume of your audio, adjust the volume
on the IFE system.
If you want to increase the volume on the headphones and the volume
does not increase as usual, restart the headphones by switching them off
and on again.
Using the answer/end button of the audio cable
Optionally, you can play or pause music by pressing the answer/end button of the
supplied audio cable. You can also make, accept, and end calls using the button.
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