This is a plug and play bluetooth kit for use with the XCARLINK iPod adaptor.
You can link the device to your phone, and stream music/phonecalls etc via bluetooth through your car speakers.
I bought it as I thought my Parrot kit wouldn't work with my amped speakers, turns out they do so I have no use for this
The item comes in two parts, the module and microphone.
£28 delivered. They're over £40 new.
link to manufacturers website:
http://www.xcarlink.co.uk/product.php?p ... =24&page=1