The Kenwood DRV-410's fully automated camera will start recording once the engine is turned on and stop when the engine is turned off. Beyond that, you can simply enjoy peace of mind the camera is loop-recording a high resolution, Full HD, wide-angle view of the road (along with the date, time, and exact GPS location) to set the record straight if something unexpected happens.
If you're involved in an accident, this device's built-in G-Sensor will detect hard braking or a collision, then save the last, current and next recordings, preserving a complete record of the event. You can play the footage back on the Kenwood's display, or save the video file to the included microSD card for viewing on another device. You can also set the DRV-410 to record when the ignition is off a perfect choice when you're parked on a not-so-savory street.