Led Status Indicator; Wired Connections - PSB M4U 9 Owner's Manual

LED STATUS INDICATORS
PART/SETTING
Active Noise Cancelling Mode (ANC)
Active Mode (ON)
Bluetooth Pairing
ANC/ON
CONNECTING...

Wired Connections

Before connecting your headphones, ensure your audio source is powered off, as severe damage to equipment and/or
your ears could result.
To connect your headphones, plug the 1/8-inch (3.5mm) straight connector into one of the inputs located at the base of
the left (L) or right (R) ear cup. This allows you to pick a preferred side for a more comfortable listening setup as shown
in Figure 1 below.
Figure 1

LED STATUS INDICATOR

Solid green
Pulsing "breathing" green
Solid blue
Pulsing "breathing" blue
Flashing blue
Solid blue
Alternately flashing red and blue
No light
Flashing red
Flashing red
Solid red
Flashing red fast (three times normal speed)
Alternately flashing blue and green
DESCRIPTION
Active Noise Cancelling (ANC) mode setting is
selected and activated
Standby mode
Active Mode (ON) mode setting is selected
and activated
Standby mode
Ongoing firmware update
Bluetooth connection, paired device
Unpaired, ready to be paired
Bluetooth connection disabled or unpaired
Mute Call Microphones is engaged
Headphone being charged
Headphone fully charged
Faulty internal battery charging
Active Monitor/Transparency Mode enabled
1/8-inch (3.5mm) Straight Connector