This video is a guide on how to pair a set of Joy-Cons or a Pro controller to Nintendo Switch. Here are the steps:
-From the home menu, open 'Controllers'
-Select 'Change Grip/Order'
-Then press the pairing button on the controller. It is on the top of the Pro controller, and on the inside of the Joy-Con controllers.
That's it! The controller should be paired at this point and ready for use. Thanks for watching!