I bought this during Christmas season. There were no test piece available even I bought this product. Sound: The sound quality is awesome, exactly with sony digital technology. I can ensure that the one who listens will get goosbumbs. Design: When coming to design, it's unique and the adjustments(play, pause, shuffle and call keys) are quitely designed and comfortable. With NFC technnology it's more easy to connect with upcominng smartphones. Fitting: I'd give 0/5 rating, one of the worst fitting ever I used till now. There were 2 different sizes given but none of them doesn't fit in ear perfectly. It iis designed for sports, but it gets out from the ear even performing simple head moves. Fitting is more important because one couldn't always adjust all time to get complete movie or sound experience. Sony should redesign or change the fitting issues atleast. Charge: The charge time is perfect, it takes 1.30 hours to charge and the bckup time is almost similar to 8 hours (I didn't count).

Really great headphones, stay in whilst running and great sound quality.

I purchased this because I use the public transport 98% and the other 2% on foot. I could hardly hear any music when I was crossing the road or in a reasonably noisy place. The ear bud is big and even though I used the small cover my inner ear still hurt. Totally disappointed. Eventually I had to return this.