Model 547DSW High End Dash Cam / Car Camera / Truck / Bus Camera Shock Sensor Technology / Wide Dynamic Recording For Night Driving / 1920 x 1080 Full HD Color Video w/Audio Option / Loop Recording / Playback Screen / Date & Time Stamping / License Plate Stamping. 547DSW Dash Cam 1920x1080 Resolution / Video w/Audio / Date & Time Stamping Loop Recording / Playback Feature LIFE TIME WARRANTY / FREE SHIPPING /U.S & Territories This is the best dash camera available today. Protect yourself from false accusations / Document all accidents, driving conditions, traffic delays, road hazards and activities while parked. Quickly and easily record driving conditions and traffic both day and night in real time video with audio! Simply mount the totally self contained dash camera with the included windshield mount and plug the power cord into the cigar lighter. Videos are recorded on a micro SD card (4GB 32GB) for instant playback or later playback on your PC or Mac. Records up to 20 hours continuous video/audio with full stop or continuous overwrite!! Remove the memory card to down load to your computer to view and save the recorded video. Another unique feature to this unit is the date & time stamping as well As having the users license plate stamped on the videos. Both these features are optional at your discretion in the menu setup.