Put your AirPods in the charging case
Open the case lid
On your Nintendo Switch, go to System Settings
Select Bluetooth Audio
Select Pair Device
Press and hold the setup button on the back of the AirPods case until the light flashes white
Wait for the Switch to find the AirPods
Select your AirPods from the list
Confirm the pairing if prompted
Start using the AirPods with your Switch