Wireless Handfree Boardcast your cell phone to Radio
$8.91

This little device can use as a wireless handset car kit.
You can simply clip this device to your cell phone's earphone. 

And tune your car radio to the channel printed on this device.
You can talk to your friend and listen to your friend on your radio as a hand free device.
It works very cool, and you can also use it like a Microphone!  Wireless Microphone.