I have a tiny device plugged in an USB port, that talks to my keyboard and mouse.
In the settings for “Bluetooth & other devices”, it seems to appear as Mouse, keyboard & pen, and underneath, in a box: USB Receiver.
The only corresponding control seems to be: “Remove device”; no further options.
How do I tell the current level of the batteries in these devices?
EDIT: additionally, I have just noticed that my Bluetooth is actually off. So however this little USB dongle works, it’s separate from Windows’ onboard bluetooth.
