I have been using these earphones for over a month now. So far they have been great! Amazing quality audio and sound cancellation. However, the sound cancelling doesn't work properly when travelling on vehicles with high turbulence (e.g. Buses), as this affects the mics. on the sides of the earbuds, thus affecting the cancellation. This distorts the audio and can make it quite unpleasant to listen to. Although overall, apart from Buses, everywhere else the cancellation is great and works perfectly. Great Earphones, highly recommended!

I bought these to replace my Sony XBA-1Ps, and they are a wonderful upgrade. The strong bass that never appeared on the previously named model is plentiful here, and the detail in the treble is amazing up to 40KHz (Madonna's Frozen well worth a listen). Vocals are also strong. The noise reduction is good but not completely effective; in some ways it actually amplifies some sounds by cutting out others (such as train noise disappearing only to leave the sound of people talking coming through quite clearly, which is more irritating), though they are wonderful at cutting out external base (the real sound polluter).

These earbuds replaced my quiet comfort Bose earphones. They work great and are especially good when flying. The noise canceling feature is better than my quiet comfort so I am well pleased.