Summary A great way to listen to your iPod or other portable audio device, this innovation plugs your portables device into your in-dash cassette player. It works with your MP3, CD, or cassette player, and with your PC or laptop to deliver high-quality sound on the road?anywhere you go. The Adapter reduces noise by automatically maintaining the correct voltage within the cassette deck as you drive, so you get an outstanding mobile audio performance. Usages: 1. Plug the Adapter into cassette players in your car 2. Connect input connector in the Adapter to your portable device output jack and adjust the portable device output to proper level by volume control and you can enjoy fantastic music in your portable device now! Feature 1. Fits front- and side-loading cassette players 2. Allows easy placement of your audio player with 4 ft. cable 3. Includes a 3.5mm connector 4. Plugs into your iPod, MP3, CD, cassette player, PC, or laptop 5. Antimagnetic and shakeproof design