iDrive Touch Controller.
The iDrive Touch Controller (part of Navigation System Professional) enables the iDrive system to be conveniently operated with a single hand.
Thanks to the touchpad integrated into the Controller, it is easy to enter such information as destinations for the navigation system in handwriting. It can also be used to access a wide range of functions and settings as well as for scrolling through lists. Operation is effortless and intuitive based on one's sense of touch. This makes life especially easy for the driver since it keeps distraction from traffic to an absolute minimum. All functions operated using the Controller can be conveniently viewed in the Control Display.