Dual XDVDN9131 4 x 50-Watt AM/FM/DVD with 7-Inch Touchscreen LCD/USB/SD/BT/NAV/iPod Multimedia Receiver (Black) Control and command most iPods via touch screen Compatible-Direct track access-Last position memory ESP buffer-Play-pause-Chapter skip search-Direct time-title-chapter access-36 Station presets One-touch phone book dialing Easy-to-use touch screen graphic interface