The IRiver FM transmitter has three buttons you to save three favorite FM frequencies. It will tune to almost any FM frequency.
My favorite feature is that the device powers itself off if no audio signal is present--this will prevent any possible battery drain.
It has a nice lit blue screen with black text. It is a little difficult to read from an extreme viewing angle.
It sells for about $50.00. Overall I'd say it is a good value. I have one that is over a year old and have never had any problems...I just bought another one for my other vehicle.