recognize

Hi folks, Bought this speech mic and cannot get Mac to recognise it. Done some research to discover that: 1. Use Audio Port option has been dropped in Mojave 2. Preferences - Security which allowing access to apps doesn't solve the unrecognised problem. 3. Can't find any reference to Line In...

I own a 2016 Macbook Pro, purchased new about 5 months ago. It has suddenly stopped recognizing flash drives and external hard drives which are plugged into the USB-C ports. I have tested it with 5 different flash drives and 1 external drive, all of which worked fine the last time I used them...