After several attempts, I have found that the connector with the app "KeyCut" work, which is quite well done and even for multiple short and long-clicks can be programmed. If I understand the review of Henryk G. properly, the original Chinese app can not like that. "KeyCut" Incidentally, I have installed on a device with Android 4.4. On another device with Android 4.0 on the other hand was not installed (it will be displayed on the device not even in the Play Store), but I wanted the plug anyway use on the device with Android 4.4, so it does not bother me.
Between clicking and reaction a short but noticeable time passes (for example, longer than the response time of the On / Off button). I do not think that it depends on the plug, it behaves surely as a headset button. Maybe all those buttons have a small latency or it is on the app (here "KeyCut" = not the original app) that will have to wait so, whether you do not, a will click once. Useful I find the plug but still.