Special Voice command device make your car listen to your order  for BMW 

*Voice commands can set any time, and the content can be set freely.
*Use the voice button of original car steel wheel turn on/off the car.
*Do not affect original key operation.
*Use original car Treaty, connect with corresponding  original slot. Easily to install.
*Original voice recognition technology, stable

Highlights:
Original system
Man-machine communication
Installation easily   
Personally design
No damage to original car