"Function : DVD .Monitor Screen size : 7 inches (16:9) Resolution degree: 480(w)xRGBx234(h)=336960 points System : PAL/NTSC Power :DC12V Power supply: About 20W (only monitor and DVD) Audio and video : Video input/output, audio input/output Amplifier 50Wx4 Appearance size : Length186mm X width188mmX thickness58mm Can be upgraded TV,FM function "