Pioneer SE-NC21M Mode D'emploi page 9

4 Following Use
When not using the headphones, set the power switch to OFF.
The headphones and airline plug adapter can be stored in the
accessory carrying case.
In flight plug
adapter
5 Precautions
• When disconnecting the cord, grasp the plug and do not pull
the cord.
• The furnished in flight plug adapter may not be compatible
with the jacks on all airplanes.
• Do not use with airline onboard sound systems under the
following conditions:
– Whenever the cabin crew announces that electronic
devices are prohibited.
– When the use of privately owned headphones is prohibited
inside the plane.
• The noise-canceller function is designed to reduce noise
primarily in the low-frequency range, and is not effective at
reducing high-frequency noise.
• If the earpads do not correctly match the size and contours
of your ears, excessive sound may escape, or you may sense
insufficient bass sound, and the effect of the noise-canceling
function may be reduced.
• High-pitched feedback (howling) may occur if the
headphones are pressed against the ears.
9
En