... spills, oil steals, fuel consumption, etc.)SOS Function: You can press the SOS alarm button to send an alert. This will give ... case of an emergency. The SOS function also allows you to talk into the GPS tracker & make yourself heard on the ... about 3.5 hours)AccessoriesDevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, Microphone, Camera, LED advertising display(optional) ...