Warm-up interaction device

Quick answer：

A warm-up interaction device typically refers to a device or system designed to engage participants in a group setting, such as a meeting or social event, before the main program begins. These devices often include interactive games, quizzes, or activities that encourage interaction and build rapport among the participants. They can be as simple as a light-up ball passed around the room or as complex as a multi-player interactive game projected onto a large screen.