FMUSER M03 Mini FM transmitter Wireless Audio PLL USB Stereo FM Transmitter Used for Transmitting Audio of Computer, TV, DVD, Cell Phone , MP3, MP4, PDA, Notebook, PC, CD, MD etc

This seems to be a good little unit. It is very sensitive when tuning and unless you have a variable tuning receiver, it may be a bit difficult to tune on frequency. I haven't done it yet, but I would suggest a small box with access to the tuning cap to minimize the interaction of holding and touching the board, etc. Seems to have a good range also. So far, so good...

Very good product. I bought four of them. They do tend to drift a little off the 100.0 MHZ frequency, but can be manipulated with a very tiny set screw. Use a jeweler's screwdriver to adjust. Basically, that's why I gave it 4 stars because of the drifting and the size of the set screw. I am very happy with the product.

Could not hear it even when right next to fm receiver...maybe interference from transmitting fm stations but I thought having it right by radio would provide strong enough signal. Still could not hear it even that close.

Works just as expected. Great learning/teaching tool. If you know how a "Mr Microphone" works, this is the same type thing.

Works like a champ!!!!! Everything is said it does and flawless, Just turn on any radio it will do it job. Worth every penny. Buy it you won't be sorry.....

Didn’t work without tinkering and it gets real hot real quick. Not worth buying.

low cost , very small and picks up sounds very well , at this price get a few and you wont need to recover them...

once you find the specific frequency and antenna position, this item works very well.