I tried with both Sony Ericsson W810i and Nokia E5-00
KO W810 and Nokia E5-00 perfect. Access to the musical repertoire of the phone. So watch your old phones. Perhaps this is related to the Bluetooth standard.
Excellent audio quality, personnelllement I do not make the difference with the car radio (only lower volume).
Hands-free Phone: satisfactory, very audible sound in speakers and obviously the corresponding along very well.
LCD: unreadable with good brightness because too small. Can only be used when stopped. The infrared remote control is used if one is in the front of the unit (principle of infra-red).
The scratch steering wheel remote control is convenient not to leave the steering wheel but no proves pleasant driving because the thickness is felt when driving. Either mainière the controls on the device are simple to use.
Some manipulations necessary sometimes start: Remove the SD card and then inserted into the cigarette lighter, wait a few seconds and then insert the SD card for it to work.
For those who want an FM transmitter with a bluetooth audio kit I recommend for quality bluetooth + FM Transmitter features and SD card reader + USB. I have only tested the MP3.
NB: Not found shuffle.