Turn your car into the ultimate listening mode! Just simply connect this device to the compatible mobile or other audio devices. Tune the frequency of this device same as car radio. Play your music and enjoy it via car stereo. Whatever you can listen to on your headphones can now be heard through your car's FM tuner. Hands-free talk function, offers you more safety when driving. FM transmitter is suitable for all types of mobile phones and MP3, MP4 player.