1.4 channel car DVR , support max 64 GB sd card 2 ... be checked from time search, event search and channel search.each channel can be independently to set brightness, contrast, ... to change the Frames of every channel.. 4 channel playback, optional in any channel full screen. Support backup the date ... shutdown feature, delay time can be set between 0-6 hours. aluminum alloy design, installation easy..Size: ...