1. Magnet and waterproof bag, can be attached to the car for real-time positioning, can view three months of history. 2. A variety of ways to implement positioning, free search, global universal, computer and APP search, intelligent energy-saving mode. 3. Supports a variety of positioning, can query real-time longitude and latitude/time/speed, dial and hang up automatic answer positioning information. 4. If the device enters an underground parking garage or other GPS dead zone, it reports the location information of the device's last location. 5. Authorization number add/remove function, electronic fence, take sound function, can view three months of history. 6. Shift alarm, overspeed alarm, low power alarm function, newly added vibration alarm (optional). 7. Single location, automatic will locate click APP location, do not want to locate standby energy-saving mode. 8. Connect mobile phone card, place the device outside, the device will be automatic online, no need for any setting, easy to use, no installation.