function :add mobile positioning function based on SA-1168-3G1,mobile can ask SMS positioning message reversely ,after receive the message , ordinary intelligent mobilephone can be connected to the google earth directly ,then you can see the car location clearly . or you can type into the link to find the location on your computer.features : white list google earth positioning .application :can remote video  application:burglar alarm or hijack alarm for private car, taxi,logistics cars and so on . relatives and friends can view the real-time video and listen the real-time voice to commond the rescue as well.