F2516 Wireless FM Transmitter Enhance your audio experience through your home or car stereo for use with iPod, MP3, CD, or any audio player with a standard 3.5mm out put jack. CHANNEL LED Now you can listen to your favorite Tories from your portable audio player through any FM steed receiver, E2516 FM Transmitter tirelessly connects your portable audio players to your car or home stereo quickly and easily. Just plug the FM Transmitter into the headphone jack of your portable audio player.