Incipio Technologies OX Audio-to-Audio Jack Cable for iPhone and iPod (Black) The OX connects to any audio device sporting a 3.5mm stereo-mini headphone jack, introducing you to crystal clear audio. Connect your mp3 player to your home entertainment center's auxiliary audio-in jack for the full experience. Featuring over 6ft of plastic-coated, nonconductive cable, your OX will have no problems reaching your stereo system's audio-in jack for the high-quality playback you've been searching for. This is the ultimate auxiliary cable Connect your music player to your home entertainment center's Auxiliary Audio in jack Play your music in your car through your system's Auxiliary Audio in jack (Please check your vehicle's manual for instructions) Connect your computer's headphone or audio out jack to your sound system or powered speaker system