Great for transport, at least for the street.

They are ideal for transportation, noise is greatly reduced (with a ladle, I would say 90%, but I do not have a sound level meter in the ear).

The highs are less filtered: voices, like any non-regular noise (around 50%), eg people talkative or aerodynamic shocks such as the slamming of doors when two subway trains intersect get along well.

Much less: as soon as there was an air current headphones amplify wind noise, the hard way, and in the corridors of the metro, drafts are legion ... This prohibits further use jogging outdoor type (in the same time is dangerous).

For the price, I am very happy, not at the Bose QC20 I could try, but the price difference, four times cheaper, do not put me in the hands a product four times worse.

The BIG plus points from the model Bose: ability to operate when the battery is empty (just put on OFF) and just being able to change this standard battery AAA / LR03 to increase autonomy.

I use it every day for a month at 80 min round trip five days a week, and I have not had to recharge my battery AAA 800mAh. Of course I turn it off when I do not use it.