I bought the fm transmitter by imonster without having done research (I know silly me) and now regret my choice. While it is serviceable, it has not lived up to my expectations. By having only 8 preset station choices, I always have a fair amount of static playing along with my music. Even when I've managed to find that one preset that is working, I've had it happen where 10 minutes down the road I can no longer hear my music, but another station is cutting in. I've also found that in order to hear the songs at a normal level, I have to turn my volume to around double the normal radio setting. For myself, there are just too many radio stations near the low end of the dial for this to be effective.