Features 1、Power‑off memory function, when the machine is powered off and then restarted, it keeps the last set state. 2、Small size, easy to install, car‑specific 'A' interface. 3、Four‑screen, three‑screen, two‑screen, single‑screen display mode, NTSC/PAL automatic recognition. 4、Four pictures can adjust the mirror independently. 5、Left or right can be set to compress or not compress panorama. Specification Condition: Brand New Item Type: Video Splitter Color: White Menu: Chinese / English Screen Operation: Button Video Output: One Way View Output, Top: 1Vp-p Impedance: 759 Video Input: Four Video Inputs, Top: 1Vp-p Impedance: 759 Video Format: NTSC/PAL/Automatic Recognition High Resolution: NTSC: 720 x 480, PAL: 728 x 576 Power Failure Memory: Power on After the Machine is Powered Off, Restore the Previous Screen Mirror Image: Mirror Image Can Be Set for All Four Channels Compression: Left and Right to Set Compression / Uncompressed Panorama Ambient Temperature: -30 ° C - 60 ° C Size: Approx. 100 x 110 x 25mm/3.9 x 4.33 x 0.98in Package List 1 x Video Splitter 1 x Power Cord 1 x Video Cable 1 x Instruction Manual