OMorc Wireless FM Transmitter Radio Adapter Car Kit with 3.5 mm Audio Plug and USB Car Charger for Smart Phones - Black Wirelessly stream music from your phone or other audio device to the car stereo system through FM signal 2.1A USB charger port allows you to fast charge phones, GPS or other digital devices on the go Impressive sound quality for enjoying music and convenient design makes it simple to keep the cords neat Suitable for any devices with 3.5mm audio plug including iPhone, iPad, iPod, Samsung and other popular audio devices Connect your audio devices via 3.5mm audio port, put the other end to the cigarette lighter socket and then set your FM frequency