You can press the VR button and after you hear the beep give commands for Sirius Radio, AM Radio, FM Radio and the Garmin mapping app which DOES give you verbal and visual instructions to drive your car to its destination.
If you press the Phone button, you can make calls if you have a blue tooth enabled phone in your pocket.
The transmitter fob allows the doors to open automatically if you get within one foot of the car and to start the car by just pressing a button with your foot on the brake.