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CONNECTING TO IN-FLIGHT ENTERTAINMENT SYSTEMS...
In order to connect to in-flight entertainment systems equipped with dual output connectors, you must use the
supplied dual 3.5mm airline adaptor and Active Monitor cable (with the Active M4U Headphones).
*NOTE: Audio output jack configurations may vary on airplanes. Airline audio may not equal the high quality you
get from your home audio equipment, or a portable source.
WARNING:
PSB Speakers recommends you do not use these headphones as aviation communication equipment
as they are not engineered for many environmental conditions common in commercial or non-commercial
aircrafts (including, but not limited to: altitude, temperature, noise conditions, unpressurized aircraft, etc.)
resulting in possible interference to critical communications.
SERVICING...
Ear cup Removal for Replacement and Cleaning
The M4U ear cup cushions have been designed to be removable for cleaning and replacement purposes. Constant
removal of the cushions is not recommended nor necessary. If accidental cushion removal occurs, please see
following directions.
WARNING:
Never wet the speaker or electronics inside of your M4U Headphones. Water or cleaning solvents may
cause irreparable damage to the electronics inside your headphones. The M4U warranty does not cover
such damage.
Cleaning
For regular cleaning, use a slightly damp cloth and gently clean each ear cup cushion, and then use a dry cloth to
remove any residual moisture.
If heavy cleaning is necessary after extended listening and use, follow these directions:
- Clean the ear cup cushions by hand, fill a bowl or sink with cold water.
- Add a very small amount of dish or laundry soap, and gently clean the cushions.
- After cleaning the cushions, rinse with clean water.
- To dry the ear cup cushions, place them on a towel with the pads facing up.
- Fold the towel over top of the cushions and press down to remove any excess water in the foam padding.
- Air-dry completely before reattaching.
Cushion Attachment/Detachment
1) To reattach the ear cup cushion, grip the headband
and cushion as described above, and fit the lip of the ear
cup cushion into the provided groove/slot.
2) Using your finger, slowly work the leather lip into the groove
of the ear cup until firmly inserted.
1) To detach the ear cup cushion, grasp the headband over the ear cup cushion
that needs to be removed.
2) Using your other hand, grip the leather ear cup cushion, and carefully stretch
and pull the lip of the cushion away from the groove. If necessary, repeat on
the other ear cup.
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