In Dubai most of the cars have a kit installed in it which is very useful. It is some sort of bluetooth device. Whenever the cell phone is being used in the car, it connects phone with the music system of the car. If phone is used and music system is also being used then music system stops and that device connects phone with the car's speakers, now you do not need to carry phone in your hand and you can comfortably talk with the person on the other side using car's speakers.
What is this device called?
Is it available in Pakistan?