Specification for ipod docking station: 1.3.5mm Audio cable 2.USB cable 3.FM radio, earphone function Features:for ipod docking station can link to iPad, MP3, MP4, ... phone,IPOD,iPhone&iPhone 3G&4 can be charged when playing by plug in straightly.1.Play music, with high-powered loudspeakers, ... build-in mp3,mp4,laptop,mobilephone as peripheral speaker. for ipod docking station for ipod docking station