The use is very simple, you plug the plug in lallume cigar, the 3.5 jack on the mobile phone of their choice and synchronizes the FM frequency and the device lauto radio. And your phone not only supported but you can now read the contents of your playlist on your car Laudio. Same Appeals if you can pick up and enjoy the conversation through the vehicle interior speakers.
Simple and cheap.
PS: No need for all modern vehicles against which have USB ports and often are equipped with bluetooth connections.
Chris Alyde (on Amazon.com)