Pros Clear, full range sound. Very good range. Feature filled
Cons FM transmitters aren't the best in general.
Summary I've used a number of FM transmitters with my ipods. I've had 3 models of itrips, belkin's tunecast, and other various generic-type models. Of every product I've used thus far, this is by FAR the best of the bunch. The features on this item are amazing. It allows user to configure much more than other products, such as the ipod dock voume output, US and Japanese frequencies (so you can get the low-end FM spectrum, like 87.5-87.9). The mini-USB charger is great, since i can use a mini-USB cable to charge it with my pc without syncing it. Best of all, the sound range this unit puts out is almost as good as using your ipod with a cassette adapter. I'm very pleased.
On the down side, you will never get a crystal clear signal with an FM transmitter. Most of us use it out of necessity, but I believe this is one of the more stellar products available in its class.
Pros functions without batteries or charger, very good sound, easy to use
Cons does not "click" in- so easy to fall off
Summary this thing far exceeded my expectations. & i read the good reviews before i bought it. the other fm transmitter i used was the belkin tunecast. this one destroys it. Just speaking on a functional basis- it's amazing, as clear a sound as possible for fm transmitter. on top of that, it's small & portable, doesn't required external batteries, & easy to use with the displays on the screen. These are all improvements over the tunecast. The only small complaint i have is that there are no clips to "click" it in place. maybe by design, but i would've liked it because it would hold on much better. also, it's not designed to work with my iskin unfortunately so i had to cut away parts of the iskin to make it fit. i believe, if belkin made this thing clip in- you could squish the iskin silicone a bit until it clicked in so you wouldn't need to cut the iskin.