... with navigation: 1. Use GPS technology2. Built-in GSM module, supports texting message and Internet network communication3. With ... with navigation: 1. Free GPS tracking2. GPS Navigation3. GSM(GPRS) Wireless Communication4. Take Photo5. Monitoring the Fuel Remotely6 ... about 3.5 hours)AccessoriesDevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, Microphone, Camera, LED ...