Cheapest bluetooth keyboard with good key but small weaknesses

works and meets the following criteria:

1) natural keys Feeling
2) normal large keys
3) German keyboard
4) easily connected via Bluetooth

1) natural keys Feeling:
Is given. Tested in the Office Suite for Android. Works just fine.
Particularity as the @ = Alt + L have already been described.
The disadvantage is perhaps the Return key - it is only half as large as normal.

2) normal large keys
wonderfully big - unlike, for example, to the tiny buttons of
General Keys bluetooth mini keyboard,
which certainly beautifully small and light - but on which I can not write with my 10 finger system.

The only alternative keyboards that I have found and "normal" sized keys have these are - and PERIBOARD 804i and
Speed-Link libera.

3) German keyboard layout. QWERTY:
Yes, also available. At least on the keyboard.
On Apple no problem on Hannspad Android already.
German keyboard works when Hannspad even if you on the Android help the Hannspad_BT_KeyboardFIX.zip herunterläd file - unzip - and the unzipped file the ending gives .zip.
With this file in the root directory of the pad's can be flashed "the German keyboard understanding".

4) easily connected via Bluetooth
I suspect the authors of particularly bad reviews have the main button of the keyboard not found.
Admittedly, it is also strangely not mentioned in the manual.
So:
Device (Apple or Android) into Bluetooth discovery mode.
The keyboard now (if the batteries are installed) the small button on the back of the keyboard, press next to the battery compartment on the left!
Now the keyboard also couples without difficulty with the device - and according to number code sharing also works to connect

The disadvantages:
Missing on-off switch
The keyboard has no arrival off switch! After writing the keyboard falls off to sleep - but only slightly, a keystroke they come to life. (No LED provided to indicate that)
When the device is coupled, but this will automatically switch to the in each case also coupled device!
But this also happens in the case during transport - and that eats battery.
I have therefore accustomed to turn off the Bluetooth mode of the coupled device, if I do not need the keyboard.

Not key quality high
The keyboard is very comfortable to use - and better than many I've tried. But to get esp. On the edges of the big keys, you realize that the keyboard is not worth working.

Result: (So far) the best QWERTY keyboard in cheap Preissemgment that I could find.