UNPACKING: simple and effective packaging. Some difficulties to get the card background concealing the cord and instructions without damaging the main container. ERGONOMICS: As I had already known about Sony headphones there many years, the cord is asymmetric to the thread of the right earpiece behind the coup; this allows dangling headphones when not in use. Practice. However, sometimes the slips cordon and the entire tumbles to the ground. Nothing insurmountable though. I use these headphones on a Yotaphone 2: the control buttons on the cord do not work completely: the "-" performs no control. Nevertheless, I think it rather comes from my mobile, which does not recognize all headphones that connect to it. The jack is very small and bent in L which is very convenient. The atria tight fit. Their small size makes them sometimes delicate installation. They have the same shape as the new Earpod Apple, but did not have that little amount of plastic facilitating handling. In use, found no discomfort. LISTENING: the highlight: a clear, powerful, detailed, with deep bass, experterly balanced mids. These are ear supra, suddenly, it is not disconnected from my outside, which is nice.