While the OnePlus 6T included a USB Type-C to 3.5mm audio adapter in the box, OnePlus chose to omit the inclusion of a dongle with its 7 Pro handset and raise the online price of the peripheral.
Usb type-c dongle RSS
Microsoft could be finally releasing the promised USB Type-C dongle it promised last year, giving Surface Pro and Laptop users the option to add the port to their devices starting later this week.