You can use headphones with both your Quest and Quest 2 headsets.
Quest 2 supports both 3.5mm headphones, as well as USB-C headphones. To use standard headphones with a 3.5mm jack, plug the headphones into the audio port located on the right side of your headset.
To use USB-C headphones with Quest 2 plug the USB cable into the charging port located on the right side of the headset, just behind the standard audio port.
Keep in mind, if you plug in two sets of headphones, only the headphones plugged into the 3.5mm audio port will work. USB-C headphones also won't work if the Elite Strap with Battery is plugged in.
Quest 2 Supported USB-C Headphones and Adapters
The following list of USB-C headphones and adapters have been tested and shown to work with Oculus Quest 2
Samsung Type-C Headphones
OnePlus Type-C Bullets Earphones
USB-C to 3.5mm adapters
Google USB-C to 3.5mm Adapter
Samsung USB-C Headphone Jack Adapter
Apple USB-C to 3.5 mm Headphone Jack Adapter
Keep in mind, other USB-C headphones and adapters may work with your Quest 2, but we can't gaurentee functionality for headphones or adapters that aren't in the list above.
Quest supports the use of 3.5mm headphones. To use standard headphones with a 3.5mm jack, plug the headphones into either of the audio ports located on the both sides of your headset. If your headphones use a dual stereo jack, you can plug that into both ports.
Keep in mind, headset microphones are not currently compatible with either Quest 2 or Quest.