City Lights Landscape Clock. It is installed in large squares such as railway stations, airports and street gardens. Satellite school time, travel time is synchronized with Beijing time, timekeeping (8 kinds of music, 8 kinds of bells), after a power failure, the master clock will automatically memorize within a few months, and after an incoming call, the slave clock will automatically track to the standard time, no need for special adjustment. It can also be determined according to the user's requirements to determine the non-stop time for power outages. Computer monitoring, fault self-diagnosis, automatic lighting at night.