Real-time accurate positioning: Real-time monitoring, automatic display (Android / iOS app, Web / GPS / A-GPS and WAP), real-time monitoring, free, GPS / LBS positioning error up to 5 meters .Geographical fence alarm: You can set a geographical fence area. If the vehicle is outside the area, an alarm message will be sent to the mobile phone, which can effectively prevent theft and theft after the vehicle is stolen.Historical path and query storage: It can store historical path information, facilitate post-query and monitoring, and support LBS positioning service. Even if the car is in the underground channel, it can follow its LBS signal instead of the GPS signal.Compact and Convenient: This GPS tracker is only 90x 45x 13.5mm, with built-in power cut, wide input voltage range (suitable for all cars), plug and play, very convenient and practical.Wide range of applications: It can be applied to all types of vehicles, large, medium and small, including cars, trucks, motorcycles, buses, and can be combined with multiple management devices. It is convenient for passengers and freighters to transport vehicles. Real-time monitoring and management.