HIOTECH USB 3.5mm JACK Car AUX Audio Auxiliary (AUX) Line Out with Dock Connector for Charge & Sync (Black) Listen to music in high quality via the Auxiliary audio connector - Higher quality from Apple connector output than headphone jack output Charge your iPod/iPhone while listening to music in your car or home via AUX input Charge and Sync via the USB connector Convenient extra long cable to reach stereo and USB port Reach 4FT long. Good for using in car