Um.....easy to use and inexpensive.

If you can find an FM signal, the sound is very weak. If you want a "thumpin ride" blaring your mp3s, look elsewhere.

I wanted to listen to my MP3 player in my car but have decided to take this transmitter back to the store. What few FM signals I have found, the sound is extremely weak, even with a new set of batteries. I do not recommend this product at all.