Model: Sennheiser PX 200-IIi
You'll find it as perfect as new. I purchased it while I was in Japan two years ago. Later I purchased Sennheiser HD 650 also from Japan.
Now I decide to sell it since I don't use iPhone now, and use HD 650 in most of the cases.
Although this headphone is made for iPhone, iPod and iPads, it's also great for any modern smartphones as well as PC/Laptops.
This model from Sennheiser needs no introduction. All music aficionados know the quality of the headphones Sennheiser makes.
There are ample information and reviews available on web about this model.