Additional microphones CPW90 don't work when connected via Bluetooth

[poznaniak]

If I connect my CP960 to a PC with an USB cable - everything works fine, the small microphones light up green and I can go away up to 20 meters with them no problem.

But if I connect CP960 through bluetooth, they stop working, there's no green light. The base itself works, just the additional microphones refuse to. It's a new PC with Windows 10, drivers were installed automatically when I paired the devices.

I'd like to have it working by bluetooth, one ethernet cable is enough...