All keys have a very pleasant small stroke and are quiet. There is no really annoying typing noise. The layout is German. Special characters incl. SS are the usual buttons. For this to work on Android, you need only a small app for about 2 euros called "External Keyboard Helper Pro". Thus, the handling is very ergonomic. We paired the keyboard once via Bluetooth. Phone a numeric code will be displayed once, the one just typing on the numeric keys on the keyboard and there is also confirmed by pressing Enter. The apps mentioned in the other reviews are not so ergonomic and sometimes even unnecessary.
The app then you sets the German layout and selects the settings that the phone once this keyboard will be recognized the next time the keyboard selection dialog appears. Just as it happens when the keyboard is turned off or Bluetooth is deactivated. Thus, the hardware keyboard harmonizes wonderfully with any available Tastaturapp. For example, I usually "Smart Keyboard Pro".
Also immediately any disturbing on the display and the entire image area is the application content available disappears. For example, one can in no WhatsApp chat finish betw. Hardware & Software Keyboard switch. Real easy to use.
On the keyboard additional function keys are available: an example I like to mention only volume, mute etc.. Works like a charm! Full marks!
Incidentally, I have tested with my colleague, the keyboard also on iPad. Also everything was perfect. Unfortunately, the keyboard is not illuminated, but I do not want to overdo ;-)
my test environment: Samsung Galaxy Note with Android 2.3.6 and 4.0x
