With updates rolled out from Nintendo, the Switch console is capable of supporting many more headset options than at initial release but it can still be more complex than any desired plug-and-play solution in many cases. When it comes to Bluetooth headsets, the Switch console does not naturally support Bluetooth in any capacity, but does have 3.5mm and USB-C ports that can be used for Bluetooth adapters. Any adapter that can fit the USB-C port can be used to connect to a Bluetooth headset for sound, while a 3.5mm Bluetooth adapter will be needed for using voice input from a headset to the switch.
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When it comes to Nintendo Switch gaming headsets, the most consistent choice will be any kind of wired headset. Any gaming headset that has a 3.5mm connection can be plugged into the matching port on the Nintendo Switch to hear sound. The process is similarly simple with USB-C connection-style headsets, being the most straightforward to follow. Wireless headsets that do not use Bluetooth will vary from manufacturer and model as to whether they will work with the Nintendo Switch or not. Aggregate news sites and manufacturers are testing new wireless headsets for compatibility with the Nintendo Switch on a consistent basis, so research will be needed to determine if any given headset is compatible or not.
The best course of action can also be difficult to determine depending on what any headset is going to be used to play on the Nintendo Switch. If the headset is only being used for sound purposes, the methods listed above should work in almost all cases. However, if the headset is being used with the intent of voice communication, many capabilities will depend on the specific game being played. Some third-party games, such as the eminently popular Fortnite and Overwatch, allow for any voice-capable headset to be plugged in and immediately begin talking with other players. Nintendo games and applications suggest using the phone app for the Nintendo Switch, allowing users to communicate with friends and players in the same game lobby as them.
With this in mind, communicating with friends while playing the Nintendo Switch may be easier if done through a third-party voice communication program. Discord, Skype, Teamspeak, and other applications all offer easy voice contact with friends. If you're looking to meet new people through voice communications on the Switch, you'll need to either install the Nintendo Switch online app or play one of the third-party games that allow direct microphone input.
Thanks to Nintendo's frequent updates, if you already have a Bluetooth headset you're looking to use, connecting it to your Switch is as simple as connecting a USB-C (and 3.5mm, if you're playing one of those third-party games!) Bluetooth adapter and connecting your headset to it.