SallyBest&reg; 7 Inch 16:9 HD 4 Split Quad Video Displays Automatic Identify 4 Video Input Signal TFT LCD Car Rear View Monitor with Stand-alone DVD VCR Camera GPS Headrest Monitor 4 split video displays. Display format is 16 : 9. Comes with an IR remote controller. 4 video inputs, auto switch to V4 when reversing. Support adjusting the screen angle. Automatic identify input signal, no unified format cameras can also be used. Rear watching, image can be changed left and right, up and down. Panoramic parking system. You can see 4 direction scenery outside the car. Supports car DVD, VCR, camera, GPS and other video equipment. Apply for truck, bus, school bus, car.