Which item is essential for flight attendants to manage safety on board?

The Sky Pro device is essential for flight attendants to manage safety on board because it serves as a comprehensive tool that provides critical information and resources regarding safety procedures, passenger lists, and emergency protocols. This device enhances the flight crew's ability to respond quickly and effectively in case of an emergency by giving them access to real-time data and guidelines. Additionally, it often includes functions for reporting safety concerns or incidents, ensuring that flight attendants can maintain a safe environment for both themselves and the passengers.

While crew duty logs, passenger manifests, and flight schedules are also important aspects of flight operations, they do not directly support in-flight safety management to the same extent. Crew duty logs manage work hours and rest requirements but are not used during flight. Passenger manifests are vital for identifying who is on board, but they do not provide operational safety features. Flight schedules are necessary for planning and logistics but aren't directly related to in-flight safety management. Thus, the Sky Pro stands out as the key item for real-time safety management.