I had some initial trouble with the input and out Place the mobile phone, after two Händling but I got the hang of it: (Photo lens etc.) place first device with the USB plug and with the index finger cross into the lower opening. Using your thumb push the smartphone easily from above, at the same time pulling with your index finger slightly. The removal of the bag is reversed as easily, pull with the index finger a bit, put your thumb on the top bracket and vorsichtigt downwards, the smartphone can be removed effortlessly. The leather case meets all the precautions. Value for money super.