Live in a house divided? Listen to your music on an iPod but use a smart phone? Then RoadTrip Hands-free is the total music/hands-free calling solution for you. RoadTrip uses a powerful FM transmitter to send the music wirelessly to your car's FM radio, so you and the whole car can enjoy it through your stereo speakers. And while you're enjoying the music, your iPod or iPhone is enjoying a battery charge. When a call comes in on your iPhone or smartphone, RoadTrip becomes a hands-free speakerphone in your car. RoadTrip's high-sensitivity built-in microphone picks up your voice, and your caller's voice plays through your stereo speakers. RoadTrip's hands-free phone features work with iPhone and other Bluetooth-enabled phones.