I looked into those recently. They have "passive noise reduction", in other words, they block noise because of the "plug in the ear" effect. Sound quality is routinely reported as excellent, as you would expect from that brand.

I simply don't like ear bud style headphones. They irritate me after a short time. I have the Bose QCII headphones, and love them. I admit they are much larger, and you lose the ability to just slip them in your pocket, but I like them.

So, if you like ear plug style phones, go for it!

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