When I opened the box of my new MacBook Pro (damn it smelled so uniquely!!), below the laptop there is a black case, where the charger and another long (looped) cable (I don't know what this is suppose to do..) lie.
There is also a black packet, with the sign:
Designed by Apple in California
Inside that, 2 booklets lie with Instructions, etc. and a black soft envelope, which is inside transparent latex(?).
What is that soft envelope for?