DVD/VCD/CD/CD-RW/MP3/MP4 fold down detachable panel, USB and SD card connector. MP4 function AM/FM/MPX Stereo receiver 30 Preset stations 45W*4 power output super electronic anti-shock, Repeat/random/program/intro display MP3 Selection by sequence number&track number Mute/loud/clock control Full function remote control Preset EQ(POP/Rock/Classic) 2-4 RCA line out ISO size