Hands-Free Bluetooth FM Transmitter Car Charger with Dual USB Ports - Wireless Music Adapter & Phone Charger for iPhone, Samsung Galaxy, LG, HTC - Perfect for Road Trips & Commuting

I'll have to update this as time goes on. Out of the box, I had it set up in less than five minutes. I was on the way to work so I didn't take the time to find a truly clear station (my truck's station tuner skips over dead stations so the station I selected had static and hints of sound) but even so the sound quality surprised me - it's pretty damn good and the background noise was only audible between songs. Once I figure out how to actually tune to a truly empty frequency, I imagine it'll be even better. Haven't bothered yet because surprisingly, it's good enough.[Update: I used radio-locator.com to find a vacant station that had minimal interference over most of town, tuned the transmitter to that station, then tuned my truck to that as well. Once the transmitter was broadcasting, my truck could connect easily instead of skipping over the empty channel and the sound quality is indeed much better. I do not hear any distortion whatsoever, and I live in a fairly large city.Some reviewers seem to get distortion no matter what they do, so I wanted to mention that my antenna is located on the front passenger side of the vehicle, which is relatively close to the transmitter compared to vehicles with the antenna on the back. I don't know if that would affect the sound quality, but it's the only factor I can think of.]Phone calls work as well and are easy to answer. I'll have to test the microphone quality more and get feedback from people when they call, but it works.Very small form factor. I measured and checked the dimensions before I ordered, but I still was not sure if it was going to fit where my port is because it's tucked into a recessed compartment with a sliding cover. But it does - just barely. If it were any bigger, it would not. Very small and unobtrusive. I'm pleased that it fits as I was not interested in it gooseneck model and most of the others I looked at had larger dimensions than this one.I noticed that the display didn't turn off when I shut off the truck, so I waited 10 minutes and came back out to check. Apparently my 12v port and cigarette lighter must run even with the truck shut off, so I'll have to unplug it after every trip. I suspect that would be a problem with any equivalent device, however - if it runs on 12v and the port never shuts off, there's no way it would know the car is off. Just be careful and check whether your port operates constantly or only when the vehicle is running before you leave it plugged in over the weekend.