Play your iPod or other Portable MP3 Player through your car’s FM Radio on any FM Station. Share and enjoy your portable MP3 player, CD/DVD player, or even laptop audio through your car stereo’s FM radio with the Monster RadioPlay 300. This advanced wireless transmitter tunes to almost any FM radio station so you can play clear audio through your car stereo just about anywhere. Three programmable preset station buttons and an easy-to-read dimmable LED display let you quickly tune to the clearest station, day or night. Just tune your car radio to any clean FM station, tune RadioPlay 300 to the same station, and hit play on your portable player.