... @30FPS, 1.9GB/Hour 320x240@30FPS, 1.3GB/Hour6). Adjustable Time Slice: 3min, 5mins, 10mins, 15mins7). Uninterrupted Cycle Recording: Over-write ... latest files, so they can't be deleted9). Support Real Time & Date display on the video10). Built-in Microphone, Record sound11 ... Car DVR New Private Design HD800 1080P Car Black Box Night Vision