1. Anti theft positioning: It mainly uses SIM base station behavior to locate, which is commonly seen as the white box and communication tower of China Mobile Unicom. The operation method is very simple, using SMS or mobile app to directly connect with the GPS terminal machine, thus achieving SMS positioning and APP positioning. There will be communication costs, usually ranging from 0.1 to 0.2 yuan per text message.

　　2. Prompt for vehicle location: Regularly send location information to the phone. Mobile SMS can be sent to the SIM within the GPS terminal by sending a vehicle inspection instruction message. After receiving instructions, GPS will send them back to your authorized phone number through SMS. In addition, you can set your own positioning cycle, such as once a day, once every 10 minutes, or once every 1 hour. This positioning information is directly transmitted back to your phone according to this cycle and can be viewed through the mobile app. Each SMS query will charge the operator's prescribed self payment, such as 0.1 yuan per SMS. Please refer to the business hall of China Mobile or China Unicom for specific self payment details.

　　3. Recording function: The car GPS locator can remotely enable recording by sending corresponding SMS instructions to the SIM card on the machine. Additionally, a memory card needs to be inserted into the locator to save the current recording.

　　4. Ultra long standby time: The car GPS locator has a super large capacity battery, which can achieve a standby time of over 3 months. In addition, there is also a car charging locator that is directly connected to the cigarette lighter, so that as long as the car is started, the car GPS locator can be activated and stable. The relay GPS locator is directly connected to the car power supply through wiring, and there is no problem with long-term standby without power outage.

　　5. GPS: Based on the GPS global satellite positioning system, users can use monitoring software to complete the application of target position inquiry and tracking, which is the GPS locator function

　　6. Voice control: Voice control means picking up sound. By dialing the SIM card number in GPS and automatically connecting, you can hear the sound emitted around the machine.

　　7. Anti theft alert: This function is the same as the electronic fence on the GPS positioning of the car. You can set an area range on the mobile app by yourself. Once the car leaves this range, a push message will be sent on your phone to remind you that the car has exceeded the range. This function is also commonly used for security positioning and monitoring of children, elderly people, and pets.

　　8. Video surveillance: GPS with camera function can be used, but due to the concealed installation location, there are generally fewer GPS equipped with camera function in cars. It is also necessary to utilize a memory card, which can be used to take photos, send back, and record videos. These operations can be achieved through mobile apps or SMS commands.

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