... available 4.CIF,HD1,D1 resolution H.264 network DVR equipmentIntroduction1,Support 4CH video,CIF,HD1, ... to CIF 100FPS. Video is stored by SD card.2,It shows vehicle speed, braking signal, time ... in the video.3,Built-in GPS,3G wireless communication module,which achieve global positioning and ... Size150*138*40(MM)One SD card slotDual SD card SlotsOEM SD card Mobile DVRBackColor PackagingThis is 4CH image ...