Active Monitor - PSB M4U 9 Owner's Manual

If your audio equipment uses a 1/4-inch (6.3mm) output jack, use the included 1/4-inch adaptor.
USB Cable
Use the supplied USB cable to listen to music from your computer (audio only). This cable is also used to charge your
M4U 9 headphones.
NOTES
• With the USB cable connected to your M4U 9 and USB power, the Listening Mode Switch indicator will be flashing
RED to indicate it is being charged. The M4U 9 is fully charged when the Listening Mode Switch indicator turns into
solid RED.
• When M4U 9 is connected to USB power and the Listening Mode Switch indicator is flashing RED fast (three times
normal speed), this indicates that it is not charging correctly. When this happens, undertake the following:
• Disconnect from USB power and reconnect.
• Disconnect from USB Power, remove the battery cover and "roll" the batteries in place for a couple of seconds.
Battery contact oxidation may have occurred.
EARPHONE MOUNTED CONTROLS...
The main controls are located on the rear part of the right ear cup.
They are used to control Volume, Noise Cancelling, and your smart
device (tablet, iPod) as needed.
The Controls are used as follows:
Volume, Active Monitor and Transparency
Mode
Volume (- VOL +)
Slide up towards the + sign to increase the volume.
Slide down towards the – sign to lower the volume.
Volume Control button function can be configured
to be either Active Monitor or Transparency
Mode. This can be configured via the connected PSB
Headphone App (Settings – Control – Button Functions
– Volume Control – Active Monitor/Transparency
Mode).
Bluetooth Pairing button function can also be
configured as Transparency Mode button (Settings – Control – Button Functions – Bluetooth Pairing –
Bluetooth Pairing/Transparency Mode/Mute Call Microphones)

Active Monitor

With Volume Control button function configured as Active Monitor, press the VOL button to engage Active
Monitor. Active Monitor will reduce your current audio track by 30dB. This will enable you to hear your
surroundings without leaving your personal space. When activated, the surroundings will be amplified through
the headphones.
Active Monitor only works in either ANC or ON Listening Mode. If Active Monitor is engaged, the Listening
Mode Switch indicator will be alternately flashing BLUE and GREEN.