Pros Neat packaging and styling. Good fit to the ear, with the option of different size ear-buds. Good connectivity options.
Cons Noise cancellation performance completely imperceptible.
Summary These were purchased immediately prior to going on a long haul flight. The packaging advertises 80% noise cancellation, which is more than 10dB. The pair I bought gave no perceptible reduction in background noise during the flight, although they worked well as (expensive!) passive headphones. I have a supra-aural pair which I acquired in the early 90's, and I used to work with the team that developed the active noise cancellation system that went into the UK Warrior Armoured Fighting Vehicle in the 1980's, so I know what ANC should sound like. Considering that these cost me €69, I consider them to be extremely poor value for money.