The Venturi Mini is a link between your cell phone and car stereo, allowing you to stream music directly from your phone. The Mini connects to your phone via stereo Bluetooth and to your car stereo with its built-in FM transmitter. Once paired, your music will flow from your phone to the Mini and then to the car stereo. It plugs into 12 volt outlets, has a built-in noise filtering microphone, and will turn your car stereo into a hands-free speakerphone. It costs $129.