Review on Logitech MX Keys Wireless Keyboard Black, English by Boyan Boyanov ᠌

The developers never considered configuring the keyboard's functions without the built-in bluetooth. That example, if you use a Pword to enter Windows but switch off bluetooth on your computer, you may still use the keyboard by connecting the adapter (assuming you have one). Activation is the next step that must be taken. To sum up, a lot of nerve was required.