The USB interface of the jbl Music Castle docking station is connected to the corresponding interface of the computer.
1. Connect the docking station to the iPad Pro 2018, and plug the mouse and keyboard into the USB ports of the docking station.
2. Open the iPad, select Settings - Accessibility - Touch - Turn on Assistive Touch.
3. Open the mouse button option and select On. A circular mouse pointer will appear on the iPad screen and the connection is completed.