The shell carries out its expediency it provides in the closed state that the screen turns off (and thus saving battery power), you can receive calls and closed shell phone (with good voice quality) and you can fold back to the keyboard to operate. The bonding mechanism (not based on an actual adhesive, but on physical interactions and no residue hinteässt) for attachment to the Passport works flawlessly. Bad points: - The leather is not just the schönste- but it is leather, although some do not want to believe :-) - It taps her with the sleeve not as carefree as without, I always get a slightly spasmodic feeling in the left palm
