With a newer car, but unfortunately not equipped for the mp3, I was reluctant to install an expensive accessory. Out of curiosity, I wanted to try an FM transmitter before investing, my choice is turned on it, with respect to its price, relative to a known brand. The mixed reviews have not made me recoil, and happily. I get my transmitter, certainly it seems fragile and is not as qualitative aspect of those brands, and is a bit confused as I head for my car to test it. And there, no handling engineering, SD card, plugged into the cigarette lighter and selected station, direct the sound arrives. Its quite honorable, breath sounds when the sound of the song is low but otherwise a clear, certe not the CD, but better than the radio, because stable. I traveled 150 km on the same station adjustment (108.00) and not stall. In addition, USB, SD or 3.5mm, what more ... I highly recommend it. Hopefully my review will help you in your choice.