eForCity Black Universal All Channel FM (Broadcast) Transmitter great Compatible With Apple Ipod Nano, Photo,Video Mp3 players, PDA, CD (portable) DVD, any device with 3.5mm

After much, and I mean MUCH, reviewing of FM transmitters for my Sansa I decided on Eforcity because of the price and features. What I see as a necessity in an FM transmitter is this: First, the ability to choose any station - a must especially if you live in the city so you can choose a station that is not being used. Some of the other more expensive transmitters gave you the option of only choosing 6 frequencies. If they're occupied or even slightly occupied you will not get a very clear signal and your FM transmitter will have to compete with that signal already being broadcast. This model has the ability to search up or down to find a frequency that works best. Second, multiple power sources - This model came with both a car power adapter and will also run on one AAA battery. What I like about this is that I can broadcast my mp3 signal over any digital radio anywhere. This comes in handy at home or when I'm at a friend's house and want them to listen to a cool new song on my mp3...Read more

If you buy one of these great transmitters then do these simple things to improve your odds of having it work for at least 1 1/2 Years.

A) Don't dangle the transmitter from the input wire or car charger wire.
Make sure the wires and transmitter are properly supported. I think a
hair tie would do the trick.

B) Don't pull on the wires a lot or they will fray and stop transmitting
or powering the device. Ive been using the same rechargeable AAA
batteries in mine for over a year.

C) Tune your radio to a station with nothing playing & with as little
interference as possible. There should be NO SOUND coming from your
radio when it is CRANKED ALL THE WAY UP ON THIS STATION! - Then tune
the Transmitter to that station showing on your radio.

D) Turn your MP3 player all the way up when using the transmitters. Think
of it as thickening up the broadcast signal and making it...Read more

Have had a little problem with frequency shifting after the unit gets warm. Trying to find an open channel on the FM dial isn't as easy as it sounds especally while traveling. Takes a little tweeking to keep clear reception.