CarAssist is designed for DVR with 3G/4G mobile network. [Car Life]: Share the amazing/interesting view on the way. [DVR]: Preview video from DVR camera, capture video or photo, operate DVR, playback map track of car. [Phone Files]: Files in cellphone, list files downloaded from DVR, including loop/locked and captured files, click to playback, select to share/delete. [Me]: Manage DVR thought cloud server, monitor or playback GPS track of your car.