I have had many ipod tranmitters. Years ago, they all sucked wind. Today, there are only 1-2 (that I have found) work very well and none (yet) that work excellent. This one (again, from my experiance) has dead-spots between freq's. When traveling (+/- 60miles), I have to change from one to the other -- always. The time to switch is self-evident since the static tells you and it tells you as pleasently as a snooze alarm. Check this one out; more freq's, less (if any)switching around: &lt;http://www.amazon.com/Monster-iCarPlay-Wireless-Transmitter-Charger/dp/B00019068G/ref=sr_1_15?ie=UTF8&s=electronics&qid=1270134336&sr=1-15>