The casing is drawn from behind on the device and then pushed in easily. It does not replace the back cover, what advantages but also disadvantages. On one hand, the sheath is removed quickly, on the other hand it thus contributes a little more on. The device is noticeably thicker and larger. However, I notice the difference only when I transport the device off and on again without a cover.
The handling is good, the music is catchy and works in the shell very well protected. The thick edges takes a mobile phone even a slight fall is not crooked. For succeed gestures from the side into the screen not so good, what with a little practice, but nevertheless succeeds.
Who is protecting his unit like before adversity or simply their own care not quite trust, gold with the envelope.