I got to the "EDUP - FB - Black - Bluetooth Wireless Camera Self-Timer Remote Shutter Remote Control for iOS Photo (Apple) and Android Smartphone Tablet", donated by testberichte.reviews.de test, and would like to write something. I got the trigger in a trivalent white / green cardboard box sent, in the form of a Platik- beafnd where the shutter was itself loaded. Eben case a Chinese and English manual was, but I did not really benefit much. With a little technical Versatnd but can also connect the phone with the remote control. You just have to look at the phone with a Bluetooth device, turn on (on the side of the small switch) and the camera of the mobile phone and the remote control before it connects. To trigger is pressed the big button and for Android devices the small button for iOS device. Good merken- the in bright light you can see the gray text on a white background little. With my, not listed Sony Xperia Z1 Compact, it also usually works, so I suspect it's going to work with a lot more Android devices. Slightly susceptible to failure is the part because it has triggered only in 8 out of 10 attempts, but at the price of 6 euros which is to get over. All in all a good idea.