While it stood, that there should be a manual, but I did not get. Well, you do not really need. The instructions can be described with two words: "connect and ready."
Because the keyboard supplied with power by the tablet it is only normal that all the battery faster. The keyboard does not have to be connected all the time. If necessary, plug in and off you go.
I am writing this review even just with this keyboard, and it requires no more than a few minutes and you get used to the QWERTY design. Umlauts can be written using the word recognition also, so do not panic because these are not found on the keyboard.
I highly recommend this keyboard without hesitation and would buy again.