The rduction of ambient noise (active, by injecting a signal in opposite phase, capt by tiny microphones the collection's outdoor situs of the atria) is spectacular (especially in the bass). Necessary by train or plane. The quality of this little stereo headphones are more than respectable.

Lgitimement can ask whether the principle could not apply SoundGuard happily with studio headphones, treat the condition lightweight breath (not Gnant by plane or train, but probably rdhibitoire in a studio) produced by the amplifier loaded to inject the signal dphas.

Supplied with a good quality of tui. Folding.

Note to ouaibemestre: no CATEGORY "headphones" in the "produced by CATEGORY")