Auto-T 540102 Black FM transmitter

Wireless 206 channel FM audio transmitter with USB connector What's it used for?
For playing your MP3 player, iPod, USB key, etc. And listening to music on the car radio.

How does it work?
The device connects to the car's cigar lighter socket. Once it is adjusted to the same frequency as the car radio, you can then transmit music from your devices to the sound system in your car.