Cheapest scrap. Glücksache.Man function can only warn them.

Windows 7 / new batteries fully charged
Connection works. Writing works reasonably. The thing flexes as if it is a Rama cap. But well, I thought, for the price and I prefer to write so much.
Did the keyboard off well behaved. Next day is nothing. Batteries tested. Everything OK. The part is not working.
See after the BT profile. Anchor keyboard is still there. No Mistake.

But the lousy part simply not possible. So deleted profile. Computer reboot. Then new connection attempt. Folds tens and OFF orgies with these little cursed switch.
Keyboard goes again. For a minute. An hour later, the part does not go back.

This thing has cost me so much nervous ye can not believe. Every time I wanted to use them, they did not go.

Return does not pay. So 15 euros down the drain.

do not buy this scrap only. Saves a lot of trouble and nervous. For a little more money there are much better things.