everyday thousands of police officers need to response quickly and make many decisions by easy operation when they and their patrol vehicles are out on the streets. An easy-to-use portable device is the best choice. various models of radios and accessories meet all kinds of demands from officers of different levels. In the era of big data, officers can access exact and real-time information with their portable devices and coordinate with the team and Command & Control center. 1. intelligent applications update officers' real-time position and send emergency information to make them safe. 2. full product categories support different task forces of public safety.