Iphone-Radio transmitter

Recently i have bought a Radio converter for my iPhone so i can listen to my music in my car rather than having stock piles of CDs. I have found that the music quality is fairly okay. But you must have it on Airplane mode for the signal not to interupt the song. It is also very helpful becasue the same device also charges your iPhone so no worries about killing your iphone battery! the only problem is that the transmitter is small and easy to lose. But overall a great product!