... 3.wireless FM transmitter with LED indicate Product nameFree express delivery! Car Charger for MP3 FM Transmitter Wireless1.transmits music from mp3 to car2. ... frequency . 3. FM transmitter that allows you to listen to your portable unit on your vehicle's FM radio. You can ... - 15VDC . 16. Compatible with all (Touch, Classic, Nano, Video, Photo, with color display, Mini, Shuffle), 2G/3G, Microsoft Zune ...