... Disable enable engine ignition 2 Track car via sms 3 Hear the sound in the car 4 ... engine, original car alarm, track car with sms --S03G Features and functionsReal-time position vehicle exactly ... by SMS via cellphoneBuilt-in battery, support low power ... supplyRemote Arm/ Disarm, Call the SIM card , or SMS to control the carGeo-fence, When UNIT is out ...