... 2.USB cable 3.FM radio, earphone function Features: speaker car audio can link to iPad, MP3, MP4, Notebook, CD, DVD, ... 3G&4 can be charged when playing by plug in straightly. Plays audio from iPod, iPhone, iPad, computer, handheld game systems, ... Integrated · Connectivity Technology: Wired · Power supply:DC5V· Connector Type: audio line-in stereo 3.5 mm · Power Device: Power supply - internal · ...