Have always been reluctant to install a hands-free, because I never really on the phone in the car. Business I have to, however. By chance came across this modern part. Telephone next device is gelegt- einschalten- Bluetooth connection. Assembly as usual, somewhat weak magnetic. Works fine, even if the phone is in your pocket. Language somewhat distorted, could be better. Adjust the volume takes a while because adapt to different sounds (car radio, etc.). I thought initially that you can not select or call themselves, but there is the Galaxy voice control and the work with this part without problems. "Choose please ...." o.ä.und the connection is established. The only drawback for me: the time flashing at night. Bother really. Can you deal with mounting elsewhere, but should be changed the factory.