Yes, the Nintendo Switch has Bluetooth — here's how to connect a headset or new controller

The Nintendo Switch does have Bluetooth, and you can use it to connect wireless headphones or controllers.

The PDP Riffmaster Wireless Guitar Controller Now Has a Switch and Switch 2 Version

The PDP Riffmaster Wireless Guitar Controller for the Switch and Switch 2 is available now at Turtle Beach's website or on ...

How to sync Nintendo Switch controllers with your system, so that up to eight people can play at once

To sync a Nintendo Switch controller, you'll need to go into the "Change Grip/Order" menu on your console. There, you can add up to eight controllers.
Gizmodo

Can’t Connect Controllers to Your Switch 2? Here’s Why

The Switch 2’s Joy-Con 2 is full of extra functionality, from upgraded gyros to the slick mouse mode, but sometimes you just need a more traditional gamepad to play your games. The bigger issue users ...
GameSpot

8BitDo's Best Controllers Get Switch 2 Support - How To Set Them Up And Why It's A Big Deal

If you tried syncing an 8BitDo controller to the Nintendo Switch 2 on launch day, you were probably disappointed when the console refused to recognize it. I know I was. But my disappointment didn't ...