I am completely satisfied with my achat.Aucune difficulty to put the shell in place on the iphone. Tightness test of coque.ras Test headphones + extension coque.Ras I often use this shell when I go hiking and go geocaching. In short, a purchase that I do not regret at all and I recommend it especially to people who practice all kinds of sports. (Hiking-biking-crossing rivers etc.)