Finally it more than just the head :)

Assembly easily. The instructions at first not quite self-explanatory with regard to "how to do with the cause" because, unfortunately, there is nothing on it of "associate stick with mobile phone via Blutooth And if you initially follow guidance only, is there. Put your phone in the device, open the camera app and push the trigger ........... nothing happens :)

So untem to stick first time the button on "ON". Then activate the phone and Blutooth connect to the device.
Then, it can also be used as described.

Note for all:
- Have your volume button assignment "Zoom": This you have to switch to "take pictures" again, otherwise it will not do.
In addition to the settings of the camera, there in the penultimate line the far right: Volume button: Photos make (further selection: rotate video and Zoom ") do you need just" Photos "

Addendum:

One problem, however, has opened the same, which is a little bit annoying.
Once I have the device connected via Blutooth, this has an impact on my "cry adding" in WhatsApp / SMS etc.
Say the set "autocomplete words above / suggestions" is suddenly no longer there.

This is again only when I disconnected the device and have started my new cell phone. The little nevig!