USB tethering is a way to share your phone's connection to your PC.
Activating it will allow AudioRelay to send audio directly through a USB cable.


Even though the data transmitted through AudioRelay shouldn't count towards your mobile data usage, as it's transmitted locally, your PC could use this new connection for other purposes.
Depending on your mobile plan, it could cause additional charges.
You can prevent this risk by doing one of these steps on your phone: