How to program a USB or Bluetooth based "clicker"

[Gurdas]

I would like to:

1. Provide the user with a device (not keyboard) that is connected to a Windows 10 laptop via USB or Bluetooth. This device should have a button that the user can click to tell the software to increase the count on a numerical control. Not using the keyboard because the user input is taken while operating machinery and thus a keyboard is inconvenient and unsafe. What are examples of such devices? 

2. How would I read this device in LabVIEW? Does it need to have a LV driver or since it is connected to USB or Bluetooth, I can read the "click" through a Windows port?

[RTSLVU]

How about a wireless pointing device? Here's some examples 

They appear to Windows as a mouse and would use the standard LabVIEW "mouse events" for programming. 

Otherwise there are cheep USB digital I/O devices that have LabVIEW support. You could always wire a push button to a digital I/O input and poll or otherwise monitor for button presses in LabVIEW.