This car blacke box has a fully functional built-in video camera. This camera even has a built-in microphone for audio recording.Portable DVR that easily mounts on your car's windshield and records constantly when you are driving. This Portable DVR is powered with a cigarette lighter socket. This DVR will also record 10 seconds after you turn off your car, incase anything happens when you park your car.The portable Vehicle DVR can record important details about the scene of an accident including the weather, road conditions, and the position of traffic immediately before and during a traffic collision. Video evidence is detailed and objective and could be useful for law enforcement and insurance companies. Arguing your side of what occurred during an accident is a whole lot easier when you have video footage to support your case.This portable DVR can be used in car, school bus, city bus, trains, law enforcement vehicles, trucks, taxi cabs and RVs etc.Features:Records video and audio in continuous cycle.On-screen real time clock backed by internal lithium-ion battery.No extra battery is required. As long as the car power adapter is connected, the camera will automatically start recording once your car is turned on, and will keep recording for about 10 seconds after your car is shut off.Integrated laser pointer indicates which point you are recording.The video design with windshield suction cup provides better view.Other parametersThe video is divided in to 5 minute segments. Each file is approximately 100MB, so a 2GB SD card can record for up to 50 minutes. Can take video with voiceImage sensor: 1/4 color CMOSRecording resolution: 640x480 pixels, 30fpsFocus: 100cm to infiniteMicrophone, can record voiceRecording file: AVI video format  playable on windows media playerRepeat storage by sectionSupport SD/MMC Cards: from 128MB to 16GBWhite balance:AutoInput voltage: 12V to 32VProduct Size: 96(L)x50(W)x25(H) mm Packing Content:1*Camera1*Suction Pad1*Car power adapter1* USB cable (optional)1* User manual