Griffin iTrip lets you wirelessly transmit music from your dockable iPod or iPhone to your car or home stereo via FM radio waves. With SmartScan, it finds the best open frequency for you, and SmartSound enhances the audio quality. Switch between stereo and mono modes for optimal performance. Save your favorite stations as presets for easy recall. Charge your iPod or iPhone while you listen using the built-in Micro-USB port.