In my opinion essential when spending time in airplanes or trains. The effect is very impressive and, paired with your smartphone / MP3 player is a great headset for listening to zic or movie.
Beware though: I had the opportunity to compare it with headphones QuietComfort Boose and under similar conditions the difference is clear, the Boose is more "insulation" again!
This helmet is a good product but not to pay "full price" for the small difference in price with Boose is not justified. To me this helmet should not cost more than 199 ...
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