Experience the fusion between new technology and old with ReTraks Retractable Cassette Player Adapter and Microphone. Jam to your favorite songs or listen to a good podcast with a cassette adapter and microphone that connects your iPod, MP3 player, or portable CD player to your car stereo. Whether youre driving down the street or across the country, you can pop the adapter into your cars tape deck and call a friend or blast hi-fi sound through your speakers. This cassette adapter and microphone is a lifesaver when you travel and cant find a decent radio station in your rental car. Let your friends DJ from the backseat with the 3.9 ft. cord. When the trip is over, the cassette adapter and microphone retracts for compact storage.