A car stereo lacks Bluetooth? Here is the solution

See video on Amazon.com This system will allow you to:
* Add a handsfree to your car that would be devoid
* But also to equip a car radio with Bluetooth receiver (although your car radio or a simple model without bluetooth functionality)

Then you search on your car radio FM frequencies available, then you pair your smartphone FlexSmart.
At that time, the FlexSmart behaves as an intermediary between your smartphone and your car radio.
It'll just start the music on your smartphone, and listen on the car radio.
Plan to put the sound to build on the smartphone and you set the car radio.
You will inevitably be some small cracklings especially if you are traveling hundreds of km on the highway (it's normal and inherent in the FM band, it is very hard to have a free frequency range and therefore there are some little interference). Afterwards, if you do not listen to Mozart in full silence, it will pass unnoticed. :-)

To note:
This little device is powered by the cigarette lighter, which he is always online.
You have a USB connection, to link a cable that can charge your smartphone.
You have 2 AUX jacks (3.5mm) IN and OUT (to connect your smartphone to the FlexSmart if you do not have bluetooth) car stereo

I would have liked a simpler system to change the FM frequency as on the road if we have to change frequency (due to congestion of a frequency shift), it is not always easy and it is better have the passenger who does that.
At the sound quality level is correct.
In terms of telephone conversations, the microphone is actually not at the top, which is why I put 4 stars.