Marketing your product and doing it well is the best way to survive in this rushy market, where every now and then you are getting the best than the best. Calvin Klein a very well known company has realized this fact, and has done something very different to get the spotlight back on them. They are now running a new campaign “we are one” and for this they have launched the Calvin Klein One Perfume. But this only is not the story. The perfume bottle has a detachable mp3 player speaker !!