What advantage does the tool 'Toolbelt' provide for AV professionals?

The Toolbelt provides a significant advantage to AV professionals primarily through its remote management capabilities. This functionality allows users to access and manage AV systems from a remote location, enabling efficient oversight and control of multiple systems without the need to be physically present at each site. Remote management enhances operational efficiency by facilitating quick responses to issues, performing checks, and managing settings, all of which can save time and resources for AV professionals tasked with maintaining complex installations.

While the other options—firmware updates, network diagnostics, and device personalization—are important features in their own right, they do not encapsulate the overarching benefit that remote management offers. Remote management not only allows for ongoing monitoring and control but also integrates the management of updates and diagnostics, making it a critical tool in the AV professional's repertoire.