OBD Hardwire Charger Cable

Do you mean "Loop Recording" function? If yes, for example if you set at 1 Minute, the video will save as one minute for each clip. When the SD card gets full, it will auto overwrite old video files. As to the parking mode, it will continuous record or not which depends on the setting you choose. For example if you set at motion detection or collision detection, it will only record when it detect movement or sense the vibration.Thanks.