Importer520 3 Feet Mini 3.5mm Plug Male to Male Stereo Auxiliary Aux Cord Cable for Apple iPhone 4 16GB - 3in1 Combo Compatible with any device with a standard headphone jack Compatible with all iPod and iPhone models Two 1/8 (3.5 mm) male stereo miniature jacks Works with any car, computer, home, or portable stereo system with a 1/8 (3.5 mm) auxiliary input jack. Expands the way you connect and listen to your music.