Feature:Pops right into your cars cassette deck to play music from your iPod or iPhone.Lightweight, portable design stores easily when not in useImproved cassette head mechanism for improved sound quality.Spring-loaded cassette head maintains solid contact with your cassette tape players head for clear soundDual Balanced conductors delivers more natural audioCar Audio Cassette Casette Tape 3.5mm AUX Audio Adapter MP3 MP4 CD iPod iPhoneThe 3.5mm to cassette adapter can be used with entertainment systems that have audio cassette tape decks,connect the 3.5mm stereo jack to the output source such as an mp3 player.Silent mechanism reduces mechanical noise on the road. Spring-loaded cassette head helps maintain contact withcassette players head for clear sound.Now whether you are going down the block or cross-country, you will have plenty of music for the whole trip with this adapter.Connect your CD Player/MiniDisk Player/iPod to your car stereo through your cars in-dash cassette player.Cassette-shaped Interface inserts into your cars tape deck. Mini-plug inserts into your iPod/CD Player/MiniDisk Playerheadphone jack.Ideal for connecting MP3 Players and Phones to Car Stereos.Specification:Frequency: 30-20,000HzPlug: 3.5mmCable Length: About 1M/3.3ftColor: Black/WhiteMaterial: PlasticSize: About 100x62x12mmPowred by your cars electrical systemInstruction:1. Insert the mini plug into the headphone jack of your player.2. Turn cassette player on and turn volume to the lowest position.