GPS car tracker with fleet management, central door locking and Dual SIM. Keep track of your car in real time with this versatile GPS tracke * 2 different SIM cards can be inserted. This GPS Car Tracker is the ultimate safety device for your car, van, truck, or even the entire vehicle fleet * You"ll be able to remotely lock the door of your car and lock anyone who is inside of the vehicle until you get to the car * If using a GPRS enabled SIM card, you"ll even be able to monitor real-time movement of your vehicle with the supplied software on your computer * On top of that, you"ll also be able to record the audio inside the car using the detachable microscope