Real-time GPS locator for truck with two-way calling feature1、This car tracking device is like a phone, you need to insert a SIM card (not included) to work, and then you can track it in real time through SMS/APP/PC. 2、GPS+LBS+AGPS triple locating modes, no distance limitation, quick real-time tracking, higher accuracy. High clear map, quick search, switchable map or satelliting mode. 3、Used with APP, it supports remote fuel cut off and power off, ignition status detection, overspeed and geo-fence alarms, making your driving safer. 4、Built-in 200mAh rechargeable battery, low power consumption, long standby time. Get rid of the wire shackles, and convenient to use. 5、Equipped with premium silicon microphone, the pickup is clear, and it supports remote voice listening and two-way calling, more safety and intelligent. 6、Lightweight and portable GPS tracking device, easy to install and use, very suitable for tracking car, truck, motorcycle, boat, bus, etc..