1. Appropriate size and weight, easy to carry, too small is inconvenient for the elderly to use, too heavy is inconvenient for children to carry;

　　2. The one-button emergency button can ask for help and quickly find people who need help. The speed dial button can dial a pre-set number and preset the contact's phone number, which provides a faster operation method for the elderly and children . No need to enter the other party's phone number, saving you the hassle of making calls in an emergency. And can filter calls from non-registered phone numbers.

　　3. The current location information of the device can be provided. As long as the child wears the GPS tracker, the parent can know the child's location at any time and better control the child using the mobile phone;

　　4. Parents can set this area of the school as a safe area. Once the child leaves the safe area during class, the device will automatically send an alarm message to the parent.

　　Judging from the uses, functions and features of the above GPS trackers, GPS trackers can play a certain role in the safety of children. Especially the emergency alarm function of the gps tracker is very useful.

　　Although parents provide each student with a mobile phone, the mobile phone has the problem of dialing after all. In the event of an emergency, especially when encountering criminals, the possibility of making a phone call is very small, but the gps tracker is different, the gps tracker There is a button on it, as long as the emergency button is pressed, the alarm can be made, and the location information of the alarm person will be sent to the parent's mobile phone in time. Compared with the home-school link product, the GPS tracker is more flexible to use.

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