Macos – How to connect k750 logitech keyboard without USB

You could try with something like this. If I get it correctly, it comes with power injector. Still, you'd need to connect the injector to power and that means wires.

I can't find any battery powered injectors at the moment, but you could always make one yourself. Still, it's going to be complicated and it's going to be a hack.

Unfortunately, as far as I can see, there's no elegant solution to this problem.

Solaar can be used for configuring Logitech Unifying receiver and newer Logitech products. Allows swapping fn-keys to act normally instead of as media buttons.

http://pwr.github.io/Solaar/

Found the information from this thread: https://askubuntu.com/questions/285512/how-to-change-function-fn-key-behavior-on-wireless-logitech-keyboard