The Leo/Micro or Pro-Micro (probably others have the same HID functions)... needs to be physically connected to your PC.
That is the 'connection' to the machine to act like an HID device..
You'll need some sort of other 'device'... to be your 'wireless' input.. to take your interaction and send it to the connected HID Arduino..
Pro-Micro.. connected to pc.. will need to have a bluetooth receiver..
You will need another Arduino which is in your hard...taking the button presses/movement..etc... sending this 'data' (action) via bluetooth transmitter to the connected Pro-Micro and BT receiver.
Your not going to get 'wireless' with just your 1 Leo/Micro/Pro-Micro device.
So.. without your 'sensors' (whatever those are).. you're looking at roughly:
$3-4.00 USD for Pro-Micro (HID device)
$2-3.00 USD (each, x 2) bluetooth HC-05 devices.
$2-3.00 USD for a Pro-Mini
So far.. max $13.00 or so.. (if you order clones from China via eBay)
As you only talk about/reference the once device.. but than also reference wireless..... I'm not sure you understand how this works.