Zune Car Pack Compatibility: All Zunes (4 GB, 8 GB, 16 GB, 30 GB, 80 GB, 120 GB, Microsoft Zune HD 64GB) Zune FM Transmitter automatically selects an optimal station for broadcast Two FM presets for your most commonly used broadcast stations Charge your Zune while you listen to music Magnetic storage clip keeps wires out of your way; dashboard grip pad keeps Zune secure in car