1. The surface of the equipment is extremely fine sandblasted, exquisite touch, no fingerprint, double protection. 2. Support GPS/WiFi/AGPS/LBS base station positioning scheme, real real-time precise positioning, and tend to zero error. 3. Electronic fence, real-time alarm. When the car or child leaves the setting range, they will notify your mobile phone by SMS, which will make you feel more at ease. 4. SOS one-click help, if you encounter unexpected situations or need help, press and hold the power button for 3 seconds to quickly notify the APP. 5. Compact design, easy to carry.