The tune cast is a very good fm transmitter. I bought mine last year and have been using it on a daily basis since ( in the car ) and its still going strong. It was £39 when i bought which was quite expensive at the time but are now much cheaper. They are very easy to set up just plug into cigarette adapter in car ( or use batteries ) tune you radio to the same as the station on the tune cast, plug your chosen device ( eg i pod cd player ) and your away. The only problem is some times when traveling the station you are using can get bad interference from another radio station which results in a horrible white noise and your only option is to re-tune to another channel. But over all it good product that is easy to set up and use and has a good quality broadcasting signal and clear sound.