Vantrue N4 Dash Cam 3 Channel 1440P Front & 1080P Inside & 1080P Rear Dash Cam With high-performance Sony STARVIS CMOS sensor, a big F1.4 aperture 6-glass lens observing road front, F1.8 6-glass lens observing rear of your car, this dash cam is able to increase exposure automatically in dark situations for capture clear videos footage; 4 IR LED lights facing the vehicle occupants, which can accurately capture the whole cabin even when the cabin is completely dark. 24 hours Parking mode can be triggered by the motion detection or collision detection with continuous power supply. Motion Detection auto record when people or objects comes in front of your car; If an impact is detected when dash cam is off, collision detection enables the dash cam to auto on to record the impact. The dashcam should always be connected to hardwire kit(available separately) or external battery for parking mode.