This is assuming you have Windows. Step 1: Plug USB into Controller that you wish to test and USB into your PC. Step 2: Open up Control Panel > Hardware and Sound > Devices and Printers. Step 3: Right Click on the Wireless Controller which should be appearing under devices and select "game controller settings". Step 4: Select Properties and it brings up a menu where you can test your controllers input. Good for testing if say you feel your left or right stick aren't working well you can test to see if its detecting the full range of motion. Thank you. I'm sure most of you knew about this but was bored.