... 6. cigarette lighter power supply 7, 3.5mm audio input interface for portable CD, MD, MP3, MP4, PDA, PC, IPOD, DVD, etc ... the IPOD and 3.5 audio plugs 9, with USB interface, with charging function (direct to MP3 power supply or battery ... IPHONE music and its frequency 7 in 1 Car Kit for IPod-iPhone P37