bluetooth car adapter

There is more than meets the eye in deciding how to choose an fm transmitter. You want to play music from your favorite player through the speakers in your vehicle using a free FM channel. You yearn for sound quality good enough not to remind you that you are not using your headphones. You have a cigarette lighter port for power. What is not to like about this reasonably priced solution to listening to your favorite tunes while on the road? Not much, but there are a few things to weigh before you buy.